Seiko Cal. 6634 - 281

This Automatic model from 1966 features a 44mm Two-Tone case. Powered by the 6634 caliber with 20j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-0bf862ba1490]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1966

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