Seiko Cal. 5616 - 913

This Spring Drive model from 1974 features a 45mm Hardlex-Coated Steel case. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-a246a7ba9464]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1974

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