Seiko Cal. 5631 - 506

This Hand-Winding model from 1974 features a 43mm Stainless Steel case. It features a Silver dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-302f92a4b5de]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1974

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