Seiko Cal. 4591 - 965

This Spring Drive model from 1965 features a 43mm Titanium case. Powered by the 4591 caliber with 19j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-c5a1b5472703]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1965

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