Citizen Eco-Drive Signature Perpetual Calendar Diving Watch Japanese watches

The recently introduced Citizen Eco-Drive Signature Perpetual Calendar (ref. BL1258-53L) diving watch has immediately sparked controversy among watch enthusiasts and bloggers. The reason for the universal brouhaha was the decoration of the timekeeper’s unidirectional rotating bezel that looks like it was blatantly ripped-off the well-known TAG Heuer Aquaracer 500M Calibre 5 diving watch.

As you can see on the photos, the bezel of the new watch features the same concentric streaks pattern and the typeface used for the minute markers looks almost the same as on the original.

Of course, the decorative screws and the triangular marker at “00” are replaced with baton-shaped indexes and a rectangular plaque respectively, but the bezel still looks very much like a shameless copy of TAG Heuer’s style.

Thankfully, the controversy ends here.

Citizen Eco-Drive Signature Perpetual Calendar Diving Watch

The dial, the luminous hands and, of course, the satin-finished stainless steel case almost scream “Citizen.”

Although the Japanese watchmaker constantly experiments with different styles, it has its own design language. This particular model, for example, shares its styling elements with the rest of the Signature series, including the hand-made Grand Complication models.

The hour and minute hands, the shape of the case, even the hour markers are clearly created by one team of designers.

However, as it often the case with Japanese watches, the design easily falls into the “love it or hate it” category.

Citizen Eco-Drive Signature Perpetual Calendar Diving Watch (front view)

The watch is powered by their Caliber E764 Eco-Drive movement that offers their trademark “perpetual calendar” technology.

Although the watch sports only one simple date window at 3 o’clock, there is still no need to manually correct the calendar five times a year: on the last day of February, April, June, September, and November the calendar wheel will automatically jump to the first day of the next month.

All you need is to correctly set the watch, so that it knows whether it is a leap year, or a first (second or third) year past leap year, and to tell it about current month.

All the setting is done using the crown, which must be clicked in different positions, and the central seconds hand. It may sound somewhat complicated, but in fact is extremely easy.

As the rest of the Eco-Drive series, the Caliber E764 movement incorporates a secondary battery, which is recharged using a tiny, seamless photovoltaic cell, which is hidden behind the dial.

If you are not a nocturnal creature and will periodically subject the watch to sun light, it will tick virtually forever or, at least, until the movement breaks down or the battery becomes non-operational due to natural wear.

The watch is available now at a price of about $800 USD.

See also: Tissot Seastar 1000 Automatic Chronograph Diver

Photos: Citizen

Citizen Eco-Drive Signature Perpetual Calendar (ref. BL1258-53L) 300m diving wrist watch specification

Price: Around $800
Movement: Eco-Drive, Caliber E764, Made in Japan
Movement decoration: Standard finish
Functions: Hours, minutes, seconds, date
Power reserve: Virtually limitless as long is external light is present
Case material: Stainless steel
Bezel material: Stainless steel
Crown material: Matching case
Case shape: Tonneau
Bezel shape: Round
Case size: 43.00 mm
Lug width: No data
Case height: No data
Dial: Black, Blue or Grey
Numerals: Luminous hour-markers
Hands: Luminous
Water resistance: 300 meters
Strap: Stainless steel bracelet
Crystal: Sapphire
Case back: Screw-back

Previous post:
Saint Honore Haussman Forty7-24 Le Mans Automatic Chronograph

Next post:
Tudor Grantour Chrono Fly-Back (Ref. 20550N)