Seiko Cal. 4536 - 639

This Spring Drive model from 1991 features a 34mm Stainless Steel case. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-363421bcf4cc]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1991

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