Seiko Cal. 3866 - 120

Seiko 3866-120

This Automatic model from 1966 features a 44mm Hardlex-Coated Steel case. Powered by the 3866 caliber with 17j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-eaf05d507e59]

Also known as: Shogun, Golden Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Burgundy
Jewels
17j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1966

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