Seiko Cal. 5612 - 139

Seiko 5612-139

The 5612-139 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5612 caliber with 20j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-b3d30f512246]

Also known as: Bullhead, Silverwave

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
9.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
70m
Dial Color
Black
Jewels
20j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1977

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seikata-wm-b3d30f512246