Seiko Cal. 5641 - 594

This Automatic model from 1965 features a 34mm PVD Black case. Powered by the 5641 caliber with 17j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-05ce31831d04]

Also known as: Monster, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1965

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