Seiko Cal. 6637 - 950

This Hand-Winding model from 1979 features a 37mm Titanium case. It features a Navy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-c6f796fc3d61]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1979

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