Seiko Cal. 4431 - 272

The Seiko 4431-272 represents an important milestone in Seiko's 1989 lineup. Powered by the 4431 caliber with 27j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-31fc94cdcd71]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1989

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