Seiko Cal. 5231 - 553

This Quartz model from 1969 features a 40mm Titanium case. Powered by the 5231 caliber with 19j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-acf8cd18b9f6]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1969

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