Seiko Cal. 7131 - 781

Seiko 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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