Seiko Cal. 6139 - 340

The 6139-340 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6139 caliber with 31j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-5206661c1f21]

Also known as: Sumo, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1994

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