Seiko Cal. 5231 - 564

Seiko 5231-564

The 5231-564 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5231 caliber with 30j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-4ea91488e8f0]

Also known as: Sumo, Sea Horse

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
9.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Cream
Jewels
30j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1966

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