Seiko Cal. 4431 - 825

Seiko 4431-825

The 4431-825 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4431 caliber with 21j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-8a2b475db69f]

Also known as: Sportsmatic

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
9.3mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
100m
Dial Color
Burgundy
Jewels
21j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1973

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