Seiko Cal. 4431 - 945

The Seiko 4431-945 represents an important milestone in Seiko's 1973 lineup. Powered by the 4431 caliber with 18j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-ce313afd41ec]

Also known as: Turtle, Monster

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1973

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