Seiko Cal. 3863 - 515

Seiko 3863-515

The 3863-515 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-b388f5680446]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
13.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Champagne
Jewels
30j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1983

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seikata-wm-b388f5680446