Rolex Oyster Perpetual Milgauss Watch, 40mm PVD stainless steel case, polished bezel, black dial, clear sapphire crystal, and Oyster bracelet. Water resistant to 100 meters and resistant to magnetic flux density of 1,000 gauss.
This Rolex model is very popular among Celebrities. You can see photos of Daniel Craig, Jennifer Aniston wearing the same watch/