Seiko Cal. 5631 - 756

This Hand-Winding model from 1988 features a 36mm Stainless Steel case. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-01aabeed3df6]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1988

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