Seiko Cal. 5642 - 531

Released in 1967, the Cal. 5642 with design code 531 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-1349cf3ac942]

Also known as: Samurai, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1967

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