Seiko Cal. 4431 - 275

The 4431-275 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4431 caliber with 22j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-2f37ec3bdb30]

Also known as: Samurai, UFO

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1990

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