Seiko Cal. 6639 - 253

This Quartz model from 1969 features a 37mm Stainless Steel case. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-78c724eec25d]

Also known as: Sportsmatic, Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1969

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