The new Harry Winston Project Z9 watch features double AR-coated sapphire crystals and water resistance of up to 100 meters, in a case made of Zalium, a zirconium-base alloy exclusive to Harry Winston.
On the inside, the movement is an in-house caliber HW3304, with 37 jewels, 36,000 vph and a power reserve of 72 hours. A flyback chronograph, it has a flat silicon balance spring, an 18kt white gold openworked rotor, circular Côtes de Genève, and circular graining.
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