Seiko Cal. 3837 - 737

This Spring Drive model from 1977 features a 41mm Titanium case. Powered by the 3837 caliber with 19j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-a24821bb1423]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1977

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