Seiko Cal. 0731 - 275

This Automatic model from 1975 features a 34mm Hardlex-Coated Steel case. It features a Cream dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-d0ded0ffe9f5]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1975

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