Seiko Cal. 3831 - 229

Seiko 3831-229

This Hand-Winding model from 1966 features a 37mm Two-Tone case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-cfe722e4e9b8]

Also known as: Helmet, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
37mm
Case Thickness
14.5mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
80m
Dial Color
Champagne
Jewels
18j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1966

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