Incorporating Roman numerals, blue sword-shaped hands, a winding mechanism crowned with a sapphire and a rail-track minute circle: the Ronde Louis Cartier watch is a classic timepiece by Cartier. The alligator-skin strap may be paired with a choice of rose gold or white gold or with diamonds.

Ronde Louis Cartier 40 mm, mechanical Manufacture with self-winding mechanism caliber 1904-PS MC, case in 18K rose gold, circular-grained crown set with a sapphire cabochon, silver grained dial, Roman and Arabic numerals, apple-shaped blued-steel hands, sapphire crystal, brown semi-matt alligator-skin strap, 18K rose gold ardillon buckle, small seconds at 6 o'clock and date at 3 o'clock, sapphire case back, thickness 9.19 mm, water resistant to 3 bars (30 meters/100 feet).