Seiko Cal. 6688 - 764

This Hand-Winding model from 1989 features a 37mm PVD Black case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-64e10fe5a3a1]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1989

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