In its second edition of the Histoire de Tourbillon collection launched in 2009, Harry Winston presents an exclusive new timepiece featuring a bi-axial flying tourbillon movement designed by Greubel Forsey. The 48.5mm white gold case houses eight sapphire crystals and is limited to 20 pieces. The tourbillon is supported only from the side of the case, creating a floating effect with no visible point of fixation.

The bi-axial tourbillon gains precision through two concentric carriages enabling multidimensional rotations - an outer titanium carriage rotates in 120 seconds, housing an inner carriage completing one revolution in 40 seconds and carrying the balance, spring and escapement.

The compartmentalized case isolates the functions - tourbillon with running seconds at 9 o'clock, hours with day/night indicator at 2 o'clock, and minutes at 6 o'clock. The offset subdials create a multi-layered effect, with the day/night indicators differentiated by color - orange for day, blue for night - enhancing readability.

Offered in excellent overall condition, the present Histoire de Tourbillon No.2 numbered 19 of 20 limited pieces is complete with its accompanying accessories.