Seiko Cal. 5661 - 851

This Spring Drive model from 1998 features a 43mm Titanium case. With its 18mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-c2305a656983]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1998

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