Seiko Cal. 6680 - 392

Seiko 6680-392

The 6680-392 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6680 caliber with 25j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-9b2a64a6815d]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
42mm
Case Thickness
14.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
70m
Dial Color
Black
Jewels
25j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1984

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