Seiko Cal. 7156 - 643

This Spring Drive model from 1985 features a 38mm Hardlex-Coated Steel case. Powered by the 7156 caliber with 27j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-cc7d38988e18]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1985

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