Seiko Cal. 4431 - 350

The Seiko 4431-350 represents an important milestone in Seiko's 1985 lineup. Powered by the 4431 caliber with 19j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-72c1e130f3fd]

Also known as: Samurai, Shogun

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1985

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