Seiko Cal. 3831 - 303

Seiko 3831-303

The 3831-303 is a sought-after Kinetic piece from Seiko's golden era. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-e39057d15203]

Also known as: Helmet

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
42mm
Case Thickness
12.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Black
Jewels
21j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1979

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seikata-wm-e39057d15203