Seiko Cal. 4433 - 400

The Seiko 4433-400 represents an important milestone in Seiko's 1970 lineup. Powered by the 4433 caliber with 25j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-323d32141764]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1970

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