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Product Details

• Amazon Sales Rank: #8874 in Watches
• Brand: Citizen
• Model: JV0030-01E
• Dimensions: 3.30" h x 4.70" w x 10.70" l, .70 pounds
• Band material: Rubber
• Bezel material: stainless-steel
• Case material: stainless-steel
• Clasp type: Buckle
• Dial color: black
• Dial window material: Mineral
• Movement type: japanese-quartz
• Water-resistant to 660 feet

Features

• Ecologically friendly, light powered Eco-Drive Caliber U100 Japanese-quartz movement; Charges in natural sunlight or indoor light
• Max power reserve: 180 days; Low charge warning: 1 day; Charge time from stop state to max charge: Incandescent Light - 150 hrs, Outdoors, Cloudy (10,000 Lux) - 45 hrs, Outdoors, Sunny (100,000 Lux) - 9.5 hrs
• Current depth display in digital format up to 300 ft; Measures depth & time of dive; Measures max depth & duration of dive; Dive log memory for up to 20 dives; Auto-start dive mode; Water-temperature sensor with display and memory for current & lowest
• Stainless-steel case; Black dial; Day-date-and month functions; Measures surface intervals; 3 different alarms; 12-24 hour time and travel time (42 cities and UTC, with 29 time zones); Electro-luminescence backlighting for easy readability
• Water-resistant to 660 feet (200 M)

Amazon.com Product Description
Citizen celebrates the 20th anniversary of its professional-quality Aqualand diving watch with this special analog/digital Eco-Drive edition, which features a backlight and dive log memory. It offers water resistance to 200 meters (660 feet), suitable for scuba diving. And it's powered by Citizen's exclusive Eco-Drive technology, which charges the battery from both indoor and outdoor light. This model sports a high-tech look with a sleek asymmetrical case and coded buttons for the ultimate in form and function. It has a wealth of dive measurement functions, including:

• Depth display to 300 feet in digital format, with current and maximum displays
• Measurement of depth and time of dive
• Current and lowest water temperature display
• Surface interval measurement
• Dive log memory for up to 20 dives

Other timing functions include world time in 42 cities, 29 time zones, ability to track time in two different time zones, three alarms, 12/24-hour time display, and three alarms. Other features include a comfortable rubber strap, electro-luminescent backlighting for low-light visibility, screw-back case, screw-down crown, and a scratch resistant mineral crystal with anti-reflective coating.

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 1.5 hours of exposure to light.

Summary of Features:

• Current depth display in digital format
• Depth display to 300 feet
• Measures depth and time of dive
• Measures maximum depth and duration of dive
• Dive log memory for up to 20 dives
• Auto-start dive mode
• Water temperature display and memory for current and lowest temp
• Measures surface interval
• Calendar
• 3 alarms
• 12/24 hour time
• Travel time (42 cities and UTC, 29 time zones)
• Electro-luminescence backlighting
• Battery charge level indicator

The Citizen Watch Brand

The company was established in 1924. The founding fathers selected the name Citizen so it would be "Close to the Hearts of People Everywhere" and soon after adopted the company’s formal name, Citizen Watch Company.

During the last seventy-five years Citizen has expanded its business throughout the world and has achieved recognition as the global brand. The past twenty-five year period has coincided with the company’s dramatic rise to its current position as the world’s largest watchmaker, a distinction Citizen has held every year since 1986.

Beyond sheer size, Citizen is also recognized as a worldwide leader in advanced technology. From the world’s slimmest LCD watch to the first voice recognition watch and the world’s first professional dive watch with an electronic depth sensor, Citizen’s record of "world’s firsts" is unmatched.

More recently, Citizen has staked out a new position as the leader in Ecologically Friendly timekeeping with its Eco-Drives watches that are light powered. With models ranging from dress models to sports models to professional dive watches, Citizen Eco-Drive runs continuously in any kind of natural or artificial light for a lifetime of use. Fueled by light, it never needs a battery.

Eco-Drive Frequently Asked Questions (See the full Citizen Eco-Drive FAQ here)

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.

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Customer Reviews

Almost Perfect
This is a dive watch that I bought for everyday use to replace my spendy mechanical watches. I wanted something rugged and functional, ideally with an alarm, day/date calendar, time zones for traveling, and depth/temp/time functions for free diving and scuba. I bought it sight unseen a couple of weeks ago from Amazon/mytimepiece.com. Super fast service and great price.

Likes: I love the look of the watch and am very happy I bought the asymmetrical version. It's big, but not as clunky as the Suunto's. Fits my skinny wrist very well. The shape, coloring, and mix of old-school analog hands + depth indicator + digital window give it a modern, up-to-date look. It isn't as finely detailed as the best mechanical watches, but the look and feel suggest a quality product. I dig the solar-powered eco-drive, and watching the hands move when setting various functions or diving is mesmerizing. The diving functions (current depth, max depth, temp, time under water, log) are excellent.

Dislikes: I have three complaints. First, there is no chronometer or timer function for land use. The other day I was parked in Santa Monica and wanted to track my parking meter time with the watch. Ain't no easy way to do this, although with a bit of fiddling you could set one of the alarms with the meter expiration time. With a mechanical dive watch you just rotate the bezel and you're on your way - and you can easily see how much time you have left. The Aqualand does have a timer that automatically activates when more than four feet under water (the analog hands go to the midnight position and then the minute hand records the dive time), but there isn't a way to access this feature out of the water. Perhaps it's a safety issue, but I feel that a chrono feature should be available considering the price of the watch and the fact that it already contains the necessary technology.

Second, the watch is hard to read at night. The analog hands have large surfaces and they glow brightly when freshly juiced, but fade during the night. There's a light for the LCD display, but it only stays on for a second or two, and the default setting for the LCD shows day and date, but not time. To display the time in the LCD window you have to get tricky and set the LCD window to the `Travel' function, and then designate your local time as the `Travel' time zone. Goofy. Some sort of electroluminescent/'indiglo'-type light should be standard at this price point.

Third, the alarms are too quiet to be useful as a travel alarm clock. Taking the watch off at night helps a bit; adjustable volume would be better.

Bottom line: A great looking watch with superb features for diving.

A very nice dive watch
Purchased 2 of these watches for a two week dive trip to bonaire that occurred the last half of October 2009. Watches were extremely easy to setup and appreciate very much the ability to set the time based on international time zones. Watch is easy to use and very visible underwater and offer a user friendly dive log as well. The additional functionality includes total dive duration which is easily seen by referencing the large orange sweep hand as shown in the photograph. Having total dive duration was the prime reason we chose these watches to begin with. In addition, the watch is very stylish and comfortable to wear either on the wrist or over the sleeve of a wetsuite and has more than enough band length. After diving for two weeks, I am confident that this watch will provide outstanding service for years to come without the need for batteries.

Dive watch
This is the best dive watch I have ever owned. It is a great second to my dive computer.