Seiko Cal. 6641 - 987

This Hand-Winding model from 1987 features a 41mm Titanium case. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-e19e8e38c237]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1987

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