Seiko Cal. 7131 - 717

This Spring Drive model from 1967 features a 35mm PVD Black case. With its 19mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-2e3a86b864af]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1967

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