Seiko Cal. 4551 - 563

Seiko 4551-563

The 4551-563 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4551 caliber with 35j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-e628aa704d82]

Also known as: Sumo, Navigator

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
70m
Dial Color
White
Jewels
35j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1972

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