Seiko Cal. 6637 - 443

This Hand-Winding model from 1976 features a 37mm Gold-Plated case. It features a Cream dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-7e6bef833a9d]

Also known as: Panda, Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1976

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