Seiko Cal. 4440 - 999

The Seiko 4440-999 represents an important milestone in Seiko's 1973 lineup. Powered by the 4440 caliber with 30j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-ff7f9583a66e]

Also known as: Bullhead, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1973

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