Seiko Cal. 6678 - 827

Seiko 6678-827

The 6678-827 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6678 caliber with 19j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-b0af1ea58a7e]

Also known as: Sumo, Bullhead

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
41mm
Case Thickness
12.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
White
Jewels
19j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1986

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