Seiko Cal. 5612 - 139

Seiko 5612-139

The 5612-139 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5612 caliber with 31j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-070c5c53397d]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
14.6mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Cream
Jewels
31j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1977

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seikata-wm-070c5c53397d