Seiko Cal. 4481 - 720

This Spring Drive model from 1967 features a 44mm Stainless Steel case. Powered by the 4481 caliber with 32j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-b70ed1653203]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1967

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