Seiko Cal. 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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