Seiko Cal. 4446 - 550

Seiko 4446-550

The 4446-550 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4446 caliber with 32j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-1d31b272dbfb]

Also known as: Samurai, Helmet

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
37mm
Case Thickness
8.1mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Silver
Jewels
32j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1968

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