Seiko Cal. 4412 - 903

The Seiko 4412-903 represents an important milestone in Seiko's 1978 lineup. Powered by the 4412 caliber with 35j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-f84de18e80e9]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1978

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