Seiko Cal. 5637 - 766

This Hand-Winding model from 1985 features a 40mm Hardlex-Coated Steel case. With its 18mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-e74dfed16da9]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1985

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