Seiko Cal. 6638 - 765

This Hand-Winding model from 1975 features a 34mm Stainless Steel case. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-89adba37bde1]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1975

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