Seiko Cal. 6660 - 754

Seiko 6660-754

The 6660-754 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6660 caliber with 36j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-f2ac1f7164d7]

Also known as: Tuna, UFO

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
10.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
80m
Dial Color
Cream
Jewels
36j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1977

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