Seiko Cal. 4428 - 413

Seiko 4428-413

The 4428-413 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4428 caliber with 34j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-400a0d35fb24]

Also known as: Helmet

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
37mm
Case Thickness
8.3mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
160m
Dial Color
Cream
Jewels
34j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1994

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