Seiko Cal. 6637 - 961

This Hand-Winding model from 1970 features a 46mm Titanium case. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-cb2301870014]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

32j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1970

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