Seiko Cal. 5628 - 532

This Automatic model from 1971 features a 39mm PVD Black case. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-0ae6212f8f3d]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

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