Seiko Cal. 7139 - 261

Seiko 7139-261

The 7139-261 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7139 caliber with 23j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-41437862f347]

Also known as: UFO, Baby Tuna

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
13.6mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Green
Jewels
23j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1967

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