Seiko Cal. 4531 - 318

This Automatic model from 1970 features a 37mm Stainless Steel case. It features a Burgundy dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-d32e5f19b194]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1970

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