Seiko Cal. 7139 - 370

The 7139-370 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7139 caliber with 23j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-aed61ceac152]

Also known as: Sumo, Silverwave

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1989

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