Seiko Cal. 4431 - 315

This Spring Drive model from 1994 features a 42mm PVD Black case. With its 22mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-b7ad4bc17793]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1994

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