Seiko Cal. 7131 - 645

This Spring Drive model from 1999 features a 46mm PVD Black case. With its 20mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-135945a86f85]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1999

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