Seiko Cal. 4433 - 121

Seiko 4433-121

The 4433-121 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4433 caliber with 30j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-9b20869a2b13]

Also known as: Tuna, Silverwave

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
9.6mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
200m
Dial Color
Burgundy
Jewels
30j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1976

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seikata-wm-9b20869a2b13