Seiko Cal. 4571 - 564

Seiko 4571-564

The 4571-564 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4571 caliber with 17j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-8d363a486ab4]

Also known as: Sumo, Helmet

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
15.0mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Black
Jewels
17j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1977

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