Seiko Cal. 3866 - 379

Seiko 3866-379

The 3866-379 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e606d6445e80]

Also known as: Arnie

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
39mm
Case Thickness
8.5mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Silver
Jewels
22j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1982

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