Seiko Cal. 5666 - 394

This Automatic model from 1971 features a 41mm Titanium case. Powered by the 5666 caliber with 21j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-c07e929ffc18]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

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