Seiko Cal. 4532 - 640

This Spring Drive model from 1992 features a 35mm Two-Tone case. Powered by the 4532 caliber with 19j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-67fd0a187e85]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1992

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