Seiko Cal. 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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