Seiko Cal. 4431 - 275

Seiko 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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