Seiko Cal. 5231 - 670

Seiko 5231-670

This Spring Drive model from 1981 features a 46mm Gold-Plated case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-e88b4eaa70e9]

Also known as: Turtle, Monster

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
12.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
200m
Dial Color
Green
Jewels
24j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1981

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