Seiko Cal. 3863 - 866

Seiko 3863-866

The 3863-866 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3863 caliber with 28j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-9d892c799979]

Also known as: Golden Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
13.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Navy
Jewels
28j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1976

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seikata-wm-9d892c799979