Seiko Cal. 5657 - 931

This Automatic model from 1984 features a 44mm Titanium case. It features a Navy dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-9c9fe3917757]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1984

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