Seiko Cal. 7112 - 331

This Spring Drive model from 1988 features a 38mm PVD Black case. Powered by the 7112 caliber with 19j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-56b347a11d9a]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1988

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