Seiko Cal. 7171 - 991

Seiko 7171-991

The 7171-991 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7171 caliber with 33j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-b25018b67ca6]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
11.1mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
170m
Dial Color
Navy
Jewels
33j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1995

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