Seiko Cal. 3866 - 214

Seiko 3866-214

The 3866-214 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3866 caliber with 36j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-0d6b88fee38c]

Also known as: Sumo, Helmet

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
34mm
Case Thickness
12.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Navy
Jewels
36j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1985

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