Seiko Cal. 0765 - 837

Released in 1978, the Cal. 0765 with design code 837 was part of Seiko's domestic market collection. Powered by the 0765 caliber with 21j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-95e844e4b376]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1978

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