Seiko Cal. 5636 - 947

This Spring Drive model from 1983 features a 42mm Titanium case. Powered by the 5636 caliber with 18j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-e509092ab70a]

Also known as: Bellmatic, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1983

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