Seiko Cal. 0761 - 838

This Spring Drive model from 1976 features a 40mm Two-Tone case. Powered by the 0761 caliber with 31j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-52a8d588bd48]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1976

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