Some specifications for this reference are on file; the record is incomplete.
Laurent Ferrier · Classic
Classic Tourbillon Double Spiral
Ref. Classic Tourbillon Double Spiral
Missing informationCore fields not yet documented for this reference: Case diameter, Caliber, Production, Water resistance, Dial
Authentication Notes
Movement
A natural escapement looks nothing like a Swiss lever
Two escape wheels impulsing the balance directly, with no pallet fork mediating between them and the balance, is a visibly different architecture from the Swiss lever escapement in essentially every other watch. It cannot be approximated by decorating a conventional movement, and it is visible through the caseback. Where a watch is presented as carrying one, this settles the question.
Movement
Watch the tourbillon carriage actually rotate
A tourbillon carriage rotates, conventionally once a minute, carrying the balance and escapement with it. Cheap watches with a rotating disc in a dial aperture — and there are many — do not. The distinction is between a carriage carrying an oscillating balance around with it and a decorative element turning behind an opening, and a few seconds of observation separates them.
Inspection points
No inspection checklist has been published for this reference.