Seiko Cal. 6151 - 637

This Spring Drive model from 1969 features a 41mm Hardlex-Coated Steel case. Powered by the 6151 caliber with 21j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-5b0823a6862f]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1969

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