Seiko Cal. 7155 - 839

The 7155-839 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 7155 caliber with 35j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-471b6608e370]

Also known as: Sumo, Crown

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1973

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