Seiko Cal. 7131 - 781

The 7131-781 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7131 caliber with 26j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-84bcefba8d67]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1995

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