Seiko Cal. 6637 - 804

This Hand-Winding model from 1966 features a 41mm PVD Black case. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-2a9e16cbfb19]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1966

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