Seiko Cal. 6634 - 740

This Hand-Winding model from 1980 features a 45mm Stainless Steel case. It features a Green dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-927b642fae64]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1980

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