Seiko Cal. 7161 - 410

Seiko 7161-410

The Seiko 7161-410 represents an important milestone in Seiko's 1979 lineup. Powered by the 7161 caliber with 31j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-fcc8cc8a609f]

Also known as: Monster, Sumo

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
12.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Cream
Jewels
31j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1979

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