Seiko Cal. 4489 - 643

This Spring Drive model from 1980 features a 37mm Titanium case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-51ab261cf4e3]

Also known as: Silverwave, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1980

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