Seiko Cal. 6331 - 106

Seiko 6331-106

This Spring Drive model from 1968 features a 34mm Hardlex-Coated Steel case. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-dd40e2cf4342]

Also known as: Sumo

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
9.8mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
50m
Dial Color
Black
Jewels
20j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1968

Related Models

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