Seiko Cal. 4556 - 727

Seiko 4556-727

The 4556-727 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4556 caliber with 29j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-5e13667aa222]

Also known as: Samurai, Sumo

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
14.6mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
100m
Dial Color
Navy
Jewels
29j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1993

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