Seiko Cal. 7170 - 831

Seiko 7170-831

This Kinetic model from 1977 features a 40mm Hardlex-Coated Steel case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2b4bd6c5e504]

Also known as: Helmet

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.4mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
150m
Dial Color
Black
Jewels
27j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1977

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