Seiko Cal. 5616 - 636

This Spring Drive model from 1972 features a 37mm Titanium case. Powered by the 5616 caliber with 33j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-42e0f0d2d6be]

Also known as: Rally, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1972

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