Seiko Cal. 6638 - 681

This Solar model from 1985 features a 39mm Stainless Steel case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-449f66c3d20a]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1985

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