Seiko Cal. 5231 - 552

This Hand-Winding model from 1973 features a 34mm Titanium case. Powered by the 5231 caliber with 30j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-a07a9cb1e559]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1973

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