Seiko Cal. 4551 - 861

Seiko 4551-861

The 4551-861 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4551 caliber with 34j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-c92b5210e7b1]

Also known as: Tuna, Silverwave

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
11.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Black
Jewels
34j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1970

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seikata-wm-c92b5210e7b1