Seiko Cal. 6131 - 616

This Spring Drive model from 1999 features a 37mm PVD Black case. With its 22mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-c1cc5b3db4ce]

Also known as: Bellmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1999

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