Seiko Cal. 6231 - 550

Seiko 6231-550

This Kinetic model from 1973 features a 36mm Hardlex-Coated Steel case. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-aa0e11f5019e]

Also known as: Helmet

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
8.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
180m
Dial Color
Burgundy
Jewels
36j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1973

Related Models

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