Seiko Cal. 4432 - 590

The Seiko 4432-590 represents an important milestone in Seiko's 1965 lineup. Powered by the 4432 caliber with 20j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-d486c7cdbc34]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1965

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