Seiko Cal. 5231 - 890

Seiko 5231-890

The 5231-890 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5231 caliber with 21j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-15600a127711]

Also known as: Sumo, Arnie

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
40mm
Case Thickness
11.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Cream
Jewels
21j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1980

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seikata-wm-15600a127711