Seiko Cal. 5617 - 537

This Spring Drive model from 1968 features a 37mm PVD Black case. Powered by the 5617 caliber with 29j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-fcd39d7a61b5]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1968

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