Seiko Cal. 6678 - 570

Seiko 6678-570

The 6678-570 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6678 caliber with 34j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-9842eed76ad1]

Also known as: Monster, Bellmatic

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
35mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
30m
Dial Color
White
Jewels
34j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1977

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