Seiko Cal. 3837 - 158

The Seiko 3837-158 represents an important milestone in Seiko's 1978 lineup. Powered by the 3837 caliber with 29j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-65b87a89add5]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1978

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