Seiko Cal. 5680 - 866

Seiko 5680-866

The 5680-866 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5680 caliber with 26j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-ef8073b3389d]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
15.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
100m
Dial Color
Black
Jewels
26j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1996

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