Seiko Cal. 6666 - 677

Seiko 6666-677

The 6666-677 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6666 caliber with 32j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-fd561efeae22]

Also known as: Rally, Emperor

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
8.0mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
50m
Dial Color
Burgundy
Jewels
32j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1978

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