Seiko Cal. 5662 - 640

This Automatic model from 1974 features a 44mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-a2bacd2ffd07]

Also known as: Samurai, Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1974

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