Seiko Cal. 7131 - 220

Seiko 7131-220

The 7131-220 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7131 caliber with 33j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-0970427d50be]

Also known as: Samurai, UFO

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
45mm
Case Thickness
15.9mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
190m
Dial Color
Silver
Jewels
33j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1969

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