Citizen
Citizen

Promaster

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Promaster

1989

Citizen's professional line for diving, aviation, and land activities, engineered for extreme durability.

Category
Professional tool watch
Designers
In-house design studio
Case materials
Stainless steel, titanium
Sizes
42-46mm
Dial
High-visibility lumed dial
Crystal
Sapphire, mineral
Strap / bracelet
Steel bracelet, rubber
Movements
Eco-Drive Calibre B300, J810
Movement type
Quartz solar, automatic
Power reserve
Solar rechargeable
Water resistance
200-300m
Complications
Date · Rotating bezel · Chronograph
Key references
Promaster Diver, Promaster Altichron
Price band
$250-$1,500
The house

Citizen

Best known for pioneering Eco-Drive light-powered technology, Citizen also produces the world's most accurate wristwatch, the Calibre 0100.

Founded
1918
Founder
Citizen Watch Co. founding group (Kamekichi Yamazaki, Alexander Kahan)
Headquarters
Tokyo, Japan
Signature materials
Super Titanium, Duratect coating, Eco-Drive solar cells
Signature movements
Eco-Drive solar quartz, Calibre 0100 high-precision quartz
Notable designers
In-house design studio