Seiko Cal. 7156 - 783

This Spring Drive model from 1975 features a 40mm Hardlex-Coated Steel case. With its 21mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-72b8bdc72f30]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1975

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