Seiko Cal. 5631 - 633

This Hand-Winding model from 1985 features a 46mm Titanium case. It features a Silver dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-d1f9ed250323]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1985

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