Seiko Cal. 3812 - 737

This Spring Drive model from 1972 features a 42mm Stainless Steel case. With its 19mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-321955bbbbac]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1972

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