Seiko Cal. 5616 - 430

This Automatic model from 1977 features a 45mm Titanium case. Powered by the 5616 caliber with 31j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-0218a1bc58a1]

Also known as: Sumo, World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1977

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