Seiko Cal. 5620 - 617

This Spring Drive model from 1990 features a 40mm Titanium case. Powered by the 5620 caliber with 29j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-f30120dccd6d]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1990

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