Seiko Cal. 5637 - 712

This Spring Drive model from 1965 features a 35mm Hardlex-Coated Steel case. With its 20mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-06398ae0513b]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1965

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