Seiko Cal. 4433 - 279

This Spring Drive model from 1974 features a 40mm Stainless Steel case. Powered by the 4433 caliber with 18j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-aef742925cc9]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1974

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