Citizen Promaster Eco-Drive AP0440-14F Diver’s 200 m (tool watch suitable for scuba diving) on a 4-ring NATO style aftermarket strap made of ballistic nylon. Under the dial, 4 solar cell segments are just visible. The 7878 caliber Eco-Drive movement used in this watch can run for 180 days on its secondary power cell before it needs light exposure for recharging. This particular watch was manufactured in May 2000. (Photo credit: Wikipedia)
Citizen Watch Company, headquartered in Japan, is one of the oldest watch manufacturers in the world. They are known for their collection of high profile technology. They have literally spearheaded some of the best watch technology and made this accessory indispensable for the modern generation. Their collections serve both men and women.
Citizen Watch production goes back to 1924 when the company’s predecessor, Shokosha Watch Research Institute, produced the “Citizen’. The Citizen was the first pocket watch. It was considered a luxury accessory and expected to be sold to the entire world. The Citizen Watch Company was established in 1930.
Throughout the following years, Citizen pioneered new technologies in watches by producing the first wrist watch (The Caliber F) in 1931 and the first shock-resistant watch (Parashock) in 1956. After Parashock, it only took three years before the first water resistant watch graced the country was named the Parawater.
The water resistant watch sparked the beginning of diver watches, which now includes various scubas that can launch deeper than 200 meters. 2003 saw the release of Stiletto, which included new technology of the Eco-Drive and is the world’s thinnest. This system exhibits a solar charged battery that does not need replacement.
Citizen Promaster Eco-Drive BN0000-04H Diver’s 300 m (tool watch suitable for scuba diving) on an aftermarket Watchadoo stainless steel bracelet. Solar cells located located under the dail provide power for the watch movement. The E168 caliber Eco-Drive movement used in this watch can run for 180 days on its secondary power cell before it needs light exposure for recharging. NATO Stock Number (NSN) 0883-99-852-5953. (Photo credit: Wikipedia)
Popular diver models
There are various diver watch models produced by Citizen, although the most popular are under the automatic, quartz and Eco-drive movement. These watches are made of metals (stainless steel, titanium, gold) and rubber straps for attaching them on the diver’s wrist. They have different features to choose from.
Citizen utilizes quartz, automation or the modern Eco-Drive technology, which ensures the batteries are charged by any form of light. These watches can be divided into 1st, 2nd, and 3rd generations with the former considered of lower functionality and technology.
Eco-Drive 3rd Generation
Under this category, there are many third generation watches. It is the latest watch technology that features a combination of lithium batteries and solar technology. They also exhibit smart power saving and can stay for six months running accurately when the battery is full.
In power saver mode, the watch can run for up to two and a half years. Examples under the Eco-Drive powered watches include skyhawK A-T, JY0006-06E (3rd), and the JY0005-50E (3rd). They have rubber straps and exhibit water resistance of over 650 feet. Other features include perpetual calendar, 24 hour chronographs, high resolutions of up to 1/100, countdown timers, GMT subdial and non reflective mineral crystals.
There is also a power reserve indicator and a side bezel that enables small calculations like distance travelled, fuel consumption and range. The Eco-Drive third generation models are more efficient than automatic and quartz models.
Quartz driven watches
These diver watches use quartz battery and features stainless steel casing, luminous hands, rubber straps and water resistance up to 200 meters. They also feature a protective non-reflective window lens (mineral crystal glass) as well as a one way rotating bezel that indicates elapsed time.
There are several examples within the quartz movement, mainly categorized under the 200Meter Divers such as the BH1374-51E. They are efficient dive watches with super legible dials and use an analogue display. They are, however, less preferred than the Eco-Drive models mainly because of the quartz battery which may need replacement.
Citizen Promaster Eco-Drive AP0440-14F Diver’s 200 m (tool watch suitbale for scuba diving) on a on a Citizen bracelet. Under the dail 4 solar cell segments are just visible. The 7878 caliber Eco-Drive movement used in this watch can run for 180 days on its secondary power cell before it needs light exposure. (Photo credit: Wikipedia)
Like all other models, the automatic watches have non reflective glass windows (sapphire crystals) and rubber straps. They do not require any form of battery replacement and include the light charging technology that ensures automatic functionality. There are various features depending on the individual watch.
Some of the examples include NY0045-05EB, NY2300-09GB, and NH6934-08F. They function accurately within depths of 200 meters. Other features are luminous dot markers and hands, stainless steel buckles, black dials, unidirectional bezel as well as the date in a self winding watch. The finish is also stainless steel which ensures there are no chances for rusting.
Most divers and surfers fancy citizen dive watches due to their soft ergonomic straps, non-reflective displays and power saving efficiencies. The Eco-Drive has received positive reception because of its eco-friendliness and ability to function accurately even after many days without light exposure. These watches are undoubtedly classy, efficient and durable allowing deep diving of over 200 meters (20 bars).