Seiko Cal. 5631 - 745

This Hand-Winding model from 1985 features a 37mm PVD Black case. It features a White dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-9e0199bf97d6]

Also known as: Shogun, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1985

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