Seiko Cal. 7156 - 316

This Automatic model from 1978 features a 43mm PVD Black case. Powered by the 7156 caliber with 35j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-1bfbe5590e7b]

Also known as: Bullhead, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1978

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