Seiko Cal. 0728 - 632

This Spring Drive model from 1978 features a 42mm Titanium case. Powered by the 0728 caliber with 20j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-2b014e39fbe3]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1978

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