Ronde Louis Cartier watch

Ronde Louis Cartier watch, 40 mm, Manufacture self-winding mechanical movement, calibre 1904-PS MC. 18K rose gold case set with 76 brilliant-cut diamonds and a beaded crown set with a brilliant-cut diamond totalling 0.83 carats, silvered flinqué dial, Roman and Arabic numerals, blued-steel apple-shaped hands, sapphire crystal, brown semi-matt alligator skin strap, double adjustable folding 18K rose gold buckle, small seconds at 6 o'clock and date at 3 o'clock, thickness 9.19 mm. Water-resistant to 3 bar (approx. 30 metres).