Seiko Cal. 5642 - 237

This Hand-Winding model from 1967 features a 37mm PVD Black case. It features a White dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-068e27c4f408]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1967

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