Seiko Cal. 7131 - 350

Seiko 7131-350

The 7131-350 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7131 caliber with 19j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-dac2425a3d8a]

Also known as: UFO, Emperor

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
14.1mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Green
Jewels
19j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1998

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