Seiko Cal. 5616 - 634

This Quartz model from 1972 features a 37mm Stainless Steel case. Powered by the 5616 caliber with 27j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-47198e5099ce]

Also known as: Monster, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1972

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