This is the 2nd polo watch from RM. This RM53-01 incorporates a cable system to suspend the movement; acting as shock and vibration absorbers. This watch also has a unique sapphire crystal; it is laminated with a poly vinyl – a first in the watch industry. This layer of lamination ensures upon breakage of the sapphire, the piece will remain intact; much like the windshield in an automobile. TPT Carbon case in 44.5mm X 49.9mm. Manual wind Tourbillon with 48 hours power reserve. Limited to 30pcs. Priced at 900,000.00 USD