Seiko Cal. 4428 - 682

Seiko 4428-682

The 4428-682 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4428 caliber with 23j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-893e69cc80f9]

Also known as: Silverwave

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
12.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
30m
Dial Color
Black
Jewels
23j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1978

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seikata-wm-893e69cc80f9