Seiko Cal. 6639 - 629

This Hand-Winding model from 1976 features a 40mm Two-Tone case. With its 19mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-2cf301c57c93]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1976

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