Seiko Cal. 7031 - 931

This Spring Drive model from 1985 features a 42mm PVD Black case. With its 19mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-714bf2d485fb]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1985

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