Seiko Cal. 7139 - 946

Seiko 7139-946

The 7139-946 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 7139 caliber with 23j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-60c9f16d0ede]

Also known as: Tuna, Bullhead

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
35mm
Case Thickness
15.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Black
Jewels
23j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1977

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