How do Citizen Eco Drive watches work

The secret of citizen eco drive watches is the way that light is absorbed, stored and then released by the citizen eco drive to power the watch.
Dials
- The dial on eco drive watches is made from ceramic or a special plastic. This allows the light sensitive panel that is hidden in eco drive watches to absorb enough light to power the watch.

Light sensitive panel
- In eco drive watches there is a light sensitive photo electric cell hidden right underneath the dial. This panel converts light into electrical energy even in low light. A few minutes of winters dayligh provides enough energy to run a eco drive watch for a day.

Secondary Battery
- The energy that is produced is stored in a lithium battery and then released as necessary to run the eco drive watch. This battery will allow the eco drive watch to run for up to 6 months in complete darkness before it will stop working.

Citizen Watch Instruction Manuals

If you're looking for the Citizen watch instruction manual you can find here
http://www.citizenwatch.jp/support/guidhomee.htm
http://www.citizenwatches.com.au/instruction_manuals/

some model have video manual it very easy to understand.

The manual are group by caliber number, it is stamped on the case back of your watch.


Check the back of your watch to find your own calibre number



* calibre number = C050

Citizen Eco-Drive Watches!

These watches are truly unstoppable, they are powered by Citizen's unique ECO-DRIVE. I've encountered many people who are not aware that these watches do not require batteries, many customers walking in to our store are surprised to hear that these Eco-Drive watches are charged by light. And once they own one, they are thrilled.

So what is Eco-Drive and how does it work, for those who've never heard of Citizen's Eco-Drive, let's go over some important points: Eco-Drive watches absorb light, sunlight as well as artificial light to recharge the watch. This is done through the crystal and dial. When the watch is regularly exposed to light, it is continously recharging. Not to worry about those rainy days either! It has a 180 day power reserve. When the reserve depleats, it takes but four hours of ight exposure to be recharged.

But you don't have to wait for that final source of power to end before you start recharging, Eco-Drive has a great feature, a helpful and very important one which indicates when charge is low. This low charge warning causes the second hand to jump two seconds at a time but don't worry, it is still keeping the right time.

To recharge your Eco-Drive watch, simply place it in direct sunlight. You can also use fluorescent or incandescent lamp, the latter should be at least 22 inches away. There are a few NO-NOs, Never ever use halogen lamp, it will damage your watch. Also don't leave your Eco-Drive on a car's dash board or sitting in front of a window.

And there, a Citizen Eco Drive is a great watch, and I don't say that just because I sell them ;) I like that they will run continously in natural or artificial light for a lifetime without ever needing a trip to the jewelry store for battery! I also love my Citizen watches, because they are attractive pieces!

Why does my watch appear to have lost time, even though it is still running?

A second important feature, Time Reset Advisory, warns that the watch has stopped completely and then been exposed to enough light to start running again. The time shown would likely be incorrect and need to be reset after recharging the watch sufficiently. To indicate this warning, the sweep second hand movement alternates between two, one second jumps and a two second jump (hitch movement) with the following two exceptions: the Eco-Drive two hand models and the Eco-Drive Chronograph.

How long will my watch run after it is fully charged?

Your watch is designed to run continuously and will do so if it is regularly exposed to bright light. Your watch uses very little energy and that is easily replenished during normal use. If your watch is put away where no light is available to it while in a fully charged state, depending on the model, it will run for from 45 days to 5 years (for models with power save feature). Most models have a 180 day power reserve.

For Detail Check Here

How is energy stored in my Eco-Drive?

A special Eco-Drive energy storage cell is used to store the electricity from the converted light energy. The high quality of the cell precludes it from being affected from the regular charge/discharge cycle as with an ordinary battery. With normal care and exposure to light, the owner can be assured of a lifetime of reliable and trouble free power. As an added benefit to the environment, the energy cell contains none of the chemicals used in ordinary watch batteries.

BM6060-57F Citizen Eco-Drive Titanium Bracelet Watch WR100

BM6060-57F Citizen Eco-Drive Titanium Bracelet Watch WR100

Product Description

Quartz movement, Dress watch, Luminous hands, markers and numbers, Solar powered by Eco-Drive, Analog date display, Brushed titanium bezel, Polished titanium case sides and crown, Brushed titanium bezel and screw-in caseback, Mineral crystal, 100 meters/330 feet water resistant

Classic styling at its' best. From the smooth, titanium case and bracelet to the date indicator, this Eco-Drive timepiece is the perfect everyday watch. Additional features include a date indicator, three-hand function, water resistant to 100 meters and fold over clasp with push button.


Product Details

* Amazon Sales Rank: #847 in Watches
* Brand: Citizen
* Model: BM6060-57F
* Band material: Titanium
* Bezel material: Titanium
* Case material: Titanium
* Clasp type: push-button-fold-over-clasp
* Dial color: black;
* Dial window material: Mineral
* Movement type: Citizen Eco-Drive
* Water-resistant to 100 meters


Customer Reviews

Excellent Watch
This is an excellent watch. Looks great and keeps good time. It does not have any sort of back lighting so it might be hard to see at night but the hands glow so that helps a lot. I like the fact that I don't have to worry about changing batteries with this thing.

AWESOME WATCH
5 PLUS STARS.THIS WATCH LOOKS GREAT,KEEPS ACCURATE TIME,IT IS TOUGHER THAN NAILS.THE CASE APPEARS TO HAVE A BIT OF A WORN APPEARANCE TO IT WHICH IS CHARACTERISTIC OF TITANIUM JEWELRY,KIND OF AN OLDER LOOK.I SOLD ONE TO SOMEONE AND THEY DID NOT UNDERSTAND THE METAL PROPERTIES OF TITANIUM AND GAVE ME A BAD RATING,BUT MAKE NO MISTAKE THESE WATCHES WILL LOOK THE SAME TEN YEARS FROM NOW AS THEY DO WHEN PURCHASED BRAND NEW.

Classic, not overly-fussy watch. Value is in the price/performance
I bought this watch at Sears during a black-Friday sale, and got a good price on it, and I am very happy with the watch. The picture doesn't the watch justice. The watch has a very restrained, uncluttered, two-tone look with a nice contrast between the gray, brushed titanium and the polished titanium, and the integrated watch band gives the watch a rich appearance.

Previous reviewers have said that you can see the solar cell behind the face. I cannot. I agree with whoever it is that said that the calendar window is too small. I can read it, but I would be willing to bet that many can't. As for the fragility of the formed (hollow) links, I can not tell if they are formed or not, but they appear to hold up up well, without scratches or dents. If they make the watch even lighter than it is or otherwise would be, then I'm not complaining.

I have relatively small wrists, the jeweler had to take out three links, but I don't find the watch-face too large or 'clunky looking.' Over-all, I love the watch and I think it looks elegant and rich.

BM8180-03E Citizen Eco-Drive Canvas Strap Watch

BM8180-03E Citizen Eco-Drive Watch

Product Details

* Amazon Sales Rank: #28 in Watches
* Brand: Citizen
* Model: BM8180-03E
* Band material: Cloth
* Bezel material: stainless-steel
* Case material: stainless-steel
* Clasp type: Buckle
* Dial color: black
* Dial window material: Mineral
* Movement type: Citizen Eco-Drive
* Water-resistant to 330 feet

Features

* Movement - Eco-Drive
* Water Resistant - 100Meters(333 Feet) Water Resistant
* Crystal - Scratch Resistant Mineral Crystal

Customer Reviews

Love my Citizen Eco-Drive #BM8180-03E
I love this watch. I bought it based on internet research only, never saw one in person before. It looks a lot better live than in the pictures. It's got a great weight and feel to it, even if the crown is a tad bit protruding, although the fine polish makes it seem less so than the pictures. Adjusting the time, day & date is very straight forward. The band is darker than all the pictures I saw, for which I'm glad, and it's comfortable and tough looking. So far no mechanical defaults whatsoever. My only real complaint about this sharp, well-made watch is that the seconds hand does not align with the minute markers on the face. Even so, I'm very satisfied with this watch.

Excellent Watch for Classic Casual
This has absolutely everything I was looking for in a casual watch. It has a timeless - classic look. You can wear it in the pool/shower. It has the day/date function. It's not a "fat" watch (width or depth).

Of course, it's also an Eco-Drive (my third). No idea why I find this power source so cool - but I definitely do! I've read quite a bit about the wrist band in reviews. Frankly, I tried to live with it, but even though it's made of quality stuff, I couldn't live with the over-sized metal eyelets - looks WAY too 70s for me. I replaced with a black leather/nylon field wristband (Speidel) from Walmart that looks & feels outstanding.

Holy cow, did I really only pay $81 for this beauty? That's a Timex/Casio plastic price for a really nice casual watch.

Citizen Eco-Drive TV Commercial

Citizen Eco-Drive technology never needs a battery change and will run forever.

Skyhawk JY0010-50E Citizen Eco-Drive Titanium Watch

Skyhawk JY0010-50E Citizen Eco-Drive Titanium Watch
By Citizen Watch

Product Description

NEW CITIZEN ECO-DRIVE TITANIUM SKYHAWK AT

The new, fully loaded 3rd generation Skyhawk redefines atomic timekeeping with radio controlled accuracy and Eco-Drive technology. Radio signals are received both automatically and on-demand by the fully loaded Skyhawk A-T. . . . . Atomic Timekeeping with Radio Accuracy . . Eco-Drive Technology (Solar Powered so you never have to change a battery) . . World Time for 43 Cities . . 2 Alarms . . 24 Hour 1/100 Second Chronograph . . Perpetual Calendar to the year 2100 . . Analog/Digital Displays . . 99 Minute Countdown Timer with Alarm . . Water Resistant to 200 Meters (660 Feet) . . 3-Day Low Charge Warning (Will notify you 3 Days before the watch completely stops) . . 180 Day Power Reserve when Fully Charged (Approximately 2.5 Years with Power Save Function - 150 Hours to fully charge in average lighting) . . Power Save Function . . Power Reserve Indicator . . Titanium Case and Bracelet . . Fold-Over Clasp with Double Hidden Push Button Release . . 45mm Case Width without Crown (Approximately 1 3/4") .

REVIEW

Excellent Watch-Extensive Features

I have had several Citizen Eco-Drive watches. This is the best one yet because of the addition of being able to syncronize with the atomic clock, along with having a Eco-drive light powered battery.

AS far as I can tell, my watch is sycronizing with the atomic clock automatically each night--because when I compare times to my atomic clock table radio, they are both in perfect sync. I have manually synced several times and have experienced no problems in my Southern Cal location.

The watch has a lot of capabilities, sone of which I find valuable and some not:
Valuable--99 hour timer and chronometer, digital display, different time zones, and the UTC time
Less valuable to me--24 hour clock (I can usually tell if it AM or PM by looking through the window),the alarms (you almost have to be awake and have the watch next to your ear to hear them) and the dial "computer" (looks pretty complicated).

Setting up the watch and using the tools is fairly complex but generally intuitive. The UTC pointer is pretty hard to see when the need to align all hands to the upright position is required. Switching time zones is not too hard, but unless you have a good memory, you will want to have the instructions close.

The face is huge and you look like you are wearing a computer--I wear mind with the face inside, so passers by usually only see the back of the band.

The titanium is fairly light but I would guess that the steel version could be a bit on the heavy side.

The luminosity looks the same as any other watch--it would really be nice if it had teaser luminosity, like the Luminox.

The crystal is mineral but not sapphire--but I ultimetly manage to scratch any kind of crystal, anyway.

The band is a single clasp unlike the double clasp that I had on my previous Eco-drives. However, I used a single clasp Rolex for many years and never experienced any problems--so probably not a big deal.

If this watch has the features you want, this is the watch you can just put on and never take off.

It's not cheap.

I personally love it!

Citizen Eco-Drive Calibre 2100 AV0031-59A

Citizen Eco-Drive Calibre 2100

Watch Code AV0031-59A

Product Specifications

Watch Information
Brand Name:	Citizen
Model number:	AV0031-59A
Part Number:	AV0031-59A
Dial window material type:	Mineral
Clasp:	fold-over-clasp-with-safety
Case material:	stainless-steel
Case diameter:	46 millimeters
Case Thickness:	15 millimeters
Band material:	stainless-steel
Band length:	mens-standard
Band width:	23 millimeters
Dial color:	white
Bezel material:	stainless-steel
Bezel Function:	Tachometer
Calendar:	Date
Movement:	Citizen Eco-Drive
Water resistant depth:	660 Feet
Warranty Type:	5-yr manufacturer warranty

Product Features

• 1/5 Second Chronograph Measures up to 12 Hours
• White Dial
• Alarm and Date
• 200-Meter Water-Resistant
• Stainless Steel Case and Bracelet

Customer Reviews

By Eric Townsend "Eric Townsend"
My favorite watch!
I am a collector of watches, to my wife's dismay... But, this is a beautiful watch that I am very proud to own. This is my third Citizen watch (among many others), but my favorite of the bunch. It is a bit on the thick & heavy side, but that is what I was looking for; something with substance. The luminescent hands are very bright and long lasting. The watch takes a good amount of sunlight to fully charge, but even in a partially charged state, it works just fine. Once fully charged, it rarely, if ever moves off of the fully charged indicator.
I have the stainless steel band and it has proved to be durable and attractive. The titanium is tougher but has a satin finish rather than a glossy finish.
I tend to be hard on my crystals and so far, so good. This one has a flat, hardened crystal and looks great.
Get this one, you will love it! Amazon has a great price on it and Citizen stands behind their products.

By Thoreau Russ
A nice looking watch
I had looked at this watch at neighborhood stores and liked it as soon as I saw it. Its a large watch, which I was looking for.I debated with myself for some time trying to decide if I should get the one with the black face or the one with the light face. Since I have a nice seiko chronograph with a black face, I decide to go for the other one. These are the things that I don't like about the watch. Its very hard to see the hands on the watch.Its actually a little difficult to tell time as the hands blend into the face. Maybe its my eyes, but its difficult to see the date.I think that could have been larger or magnified. I also wish it had a day setting. Setting the date at the end of each month is also a pain. In spite of all this, I still like wearing the watch. I like the weight and and feel of the watch. Although, maybe the model with the black face would have been a better choice.

Citizen Eco-Drive Calibre 2100

Eco-Drive Frequently Asked Questions?

How can you tell if the Eco-Drive watch is getting enough light? In normal use, the watch displays the time and the sweep-second hand moves in one second intervals. A very important feature of Eco-Drive is the Low Charge Warning Mode which as a result of low battery voltage, causes the second hand to jump two seconds at a time (while still keeping correct time).

How long will an Eco-Drive watch run after it is fully charged?
If your watch is put away where no light is available to it while in a fully charged state, depending on the model, it will run for from 45 days to 5 years.

How can the Eco-Drive watch be recharged?
Besides sunlight, it can be safely charged by exposing it to a fluorescent desk lamp, with the dial (face) up and within about 8 inches or an incandescent lamp (regular light bulb) no closer than 20 inches. Never use a halogen lamp since the heat generated by it can cause damage to your watch. The most efficient and the quickest is in direct bright sunlight (not windowsill) and never on the dashboard of a car.

Citizen Eco-Drive Aqualand

Citizen Eco-Drive Black Skyhawk JR3155-54E

Citizen Eco-Drive Black Skyhawk JR3155-54E

The Black Eagle is a dramatic new addition to the famed Citizen Skyhawk Collection of professional pilot's watches. Only the Skyhawk's have Citizen's amazing ECO-DRIVE technology that allows the watch to operate virtually forever without ever changing a battery! The Black Eagle runs on the power of light!! A few hours of light from any source (indoors or out) will keep the watch running for many months.

JR3155-54E The exciting new Black Eagle is Black Ion Plated for a tough black finish over stainless steel. And the Black Eagle has a slightly smaller diameter (42.5 millimeters) than the other watches in the Skyhawk series, an often requested feature. Although it is still a large watch, it is more comfortable to wear.

The Skyhawk is the world's most advanced flight chronograph. The watches have WORLD TIME at the simple touch of a button. Thirty different cities are preprogrammed in 22 world time zones. Plus there are three different world time alarms. And the chronograph is accurate to 1/100th of a second. Naturally the watch has the pilot's rotating slide rule bezel. In short, it's everything a pilot could possible want!

Citizen Black Eagle Skyhawk Technology

WATCH FEATURES:
o New! White on Black Reversed LCD Digital Display is easier to read
o Time and Calendar in 22 Time Zones (30 Cities)
o Three World Time Alarms
o 1/100 Second Chronograph Measures up to 24 Hours
o 99 Minute Countdown Timer
o One-Touch Interchangeable Analog/Digital Times
o Day and Date Display

CASE AND BRACELET FEATURES:
o Black Ion Plated Stainless Steel (tough & durable midnight black case color)
o Rotating Pilot's Slide Rule Bezel
o Non-Reflective Hardened Mineral Glass Crystal
o Screw Back Case
o Water Resistant to 100 Meters (330 feet)
o Three Fold Safety Clasp (on both Steel Bracelet and Polyurethane Strap)

ECO-DRIVE TECHNOLOGY:
o 4 Year Power Reserve
o Recharges in Any Light
o Time Reset Advisory
o Low Charge Indicator Window
o Power Saver Function

DIMENSIONS:
o Width 42.5 millimeters (45 millimeters with crown)
o Depth (thickness) 14.5 millimeters

Customer Reviews

Citizen Eco-Drive Calibre 8700 Watch Collection

More than just pretty face, the Citizen Eco-Drive Calibre 8700 stainless steel men's watch also has a perpetual calendar that automatically adjusts for odd and even months and leap years through 2100. It features a perfectly round silver-tone stainless steel watch case and bezel that's complemented by a supple black leather strap with crocodile-like texturing.

The silvery white dial background is accented by day-of-the-week and 24-hour subdials, as well as a mode subdial that displays the selected function (local time, calendar, alarm). It also offers luminous, black-outlined hands (with seconds hand), a date function at 4 o'clock, and Roman numeral dial markers. Other features includes a dual-time function for tracking a second time zone, scratch resistant mineral crystal with anti-reflective coating, and water resistance to 100 meters (330 feet).

This watch is powered by Citizen's unique Eco-Drive, which absorbs sunlight and any artificial light through the crystal and dial to recharge the watch continuously. With regular exposure to light, the Eco-Drive continuously recharges itself for a lifetime of use. This watch's Eco-Drive provides a 180-day power reserve, and it can be recharged with just 4 hours of exposure to light.

Citizen Eco-Drive Calibre 8700 Watch Collection

[Review] Citizen Skyhawk Chronograph Titanium Watch Y0010-50E

Customer Reviews

I have had several Citizen Eco-Drive watches. This is the best one yet because of the addition of being able to syncronize with the atomic clock, along with having a Eco-drive light powered battery.

AS far as I can tell, my watch is sycronizing with the atomic clock automatically each night--because when I compare times to my atomic clock table radio, they are both in perfect sync. I have manually synced several times and have experienced no problems in my Southern Cal location.

The watch has a lot of capabilities, sone of which I find valuable and some not:
Valuable--99 hour timer and chronometer, digital display, different time zones, and the UTC time
Less valuable to me--24 hour clock (I can usually tell if it AM or PM by looking through the window),the alarms (you almost have to be awake and have the watch next to your ear to hear them) and the dial "computer" (looks pretty complicated).

Setting up the watch and using the tools is fairly complex but generally intuitive. The UTC pointer is pretty hard to see when the need to align all hands to the upright position is required. Switching time zones is not too hard, but unless you have a good memory, you will want to have the instructions close.

The face is huge and you look like you are wearing a computer--I wear mind with the face inside, so passers by usually only see the back of the band.

The titanium is fairly light but I would guess that the steel version could be a bit on the heavy side.

The luminosity looks the same as any other watch--it would really be nice if it had teaser luminosity, like the Luminox.

The crystal is mineral but not sapphire--but I ultimetly manage to scratch any kind of crystal, anyway.

The band is a single clasp unlike the double clasp that I had on my previous Eco-drives. However, I used a single clasp Rolex for many years and never experienced any problems--so probably not a big deal.

If this watch has the features you want, this is the watch you can just put on and never take off.

It's not cheap.

I personally love it!

Citizen Skyhawk AT JY0010-50E Titanium

Citizen Eco-Drive Aqualand Watch

Diving Mode
Automatically activate the pressure sensor when it reaches 1m under water, it will automatically measure and display necessary data for diver's decision.

Measure Depth
Measure the depth within the range of 1.0m to 80.0m, display current depth measurement (unit in 10cm).

Measure Diving Time
Display in seconds up to 30 minutes. From 30 to 199 minutes display in minute.

Measure Water Temperature
Measure water temperature -5 celsius degree to 40 celsius degree in every 1 minute.

Surface Mode
Automatically measure or display the time passed after finished diving.

Measure Water surface Recess Time
Automatically measure or display the time passed from the moment the diving is stopped (unit in minute up to 24 hours).

Log Mode
Automatically display or confirm the recorded diving data.

Standard Mode
It is also suitable for daily use.

• Time
• Calendar
• Alarm
• Measure temperature
• Light

Eco-Drive Aqualand Store

What is Eco-Drive?

Eco-Drive is the general term applied to Citizen watches that employ a system that converts light energy, thermal energy, or motion energy into electrical energy for power instead of batteries that require replacement. Needless to say, we applied the name Eco-Drive because these watches are extraordinarily Eco-friendly.

These watches feature various power generation methods and mechanisms and come in a wide variety of designs. You're sure to find just the right model to suit your purpose and preferences.

Eco-Drive watches are Eco-friendly because they use light, thermal, and motion as their power sources. What's more, because battery replacement is unnecessary, the earth's limited resources are not wasted. And of course, there are no spent batteries to pose risk of environment damage.

Eco-Drive watches not only efficiently store generated power; they incorporate numerous newly developed technologies that minimize the energy the watches consume. Some models even have Power Save feature. With Eco-Drive watches every effort is made to prevent unnecessary energy consumption.

After being taken out of the light, the second hand and digital display stop to conserve power. Re-exposure to light automatically resumes function to current time and display data.

Citizen Eco-Drive Watch Store