Seiko Cal. 6650 - 692

This Spring Drive model from 1977 features a 38mm Stainless Steel case. Powered by the 6650 caliber with 26j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-dd92371e68cf]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1977

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