Seiko Cal. 7128 - 420

Seiko 7128-420

The 7128-420 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7128 caliber with 34j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-dc7f3975b102]

Also known as: Samurai, Helmet

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
36mm
Case Thickness
13.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Cream
Jewels
34j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1976

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seikata-wm-dc7f3975b102