Seiko Cal. 5638 - 486

This Hand-Winding model from 1975 features a 37mm PVD Black case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-0d59280d749a]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1975

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