Seiko Cal. 7139 - 183

Seiko 7139-183

The 7139-183 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-b6f6a081fa40]

Also known as: Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
12.1mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Champagne
Jewels
24j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1977

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