Seiko Cal. 4431 - 562

The Seiko 4431-562 represents an important milestone in Seiko's 1968 lineup. Powered by the 4431 caliber with 29j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-561a382b9ddc]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1968

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