Seiko Cal. 4494 - 531

This Hand-Winding model from 1976 features a 34mm Two-Tone case. Powered by the 4494 caliber with 31j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-7dd5f7f1f326]

Also known as: Sumo, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1976

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