Seiko Cal. 5641 - 436

This Hand-Winding model from 1974 features a 39mm Gold-Plated case. It features a Black dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-da22447d77be]

Also known as: Silverwave, World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1974

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