Seiko Cal. 0742 - 644

The Seiko 0742-644 represents an important milestone in Seiko's 1967 lineup. Powered by the 0742 caliber with 30j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-9786f54b7346]

Also known as: Goldfeather, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1967

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