Seiko Cal. 7157 - 428

Seiko 7157-428

This Kinetic model from 1969 features a 35mm Hardlex-Coated Steel case. Powered by the 7157 caliber with 34j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-5859721fa633]

Also known as: Monster, Helmet

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
8.1mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
190m
Dial Color
Navy
Jewels
34j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1969

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