Patek Philippe Annual Calendar features a 37mm 18K rose gold case with a sloped bezel and a scratch-resistant sapphire crystal. The ivory-toned dial boasts applied rose gold Roman numeral indices with luminous fills along with a printed white railroad minute track and rose gold center and subregister hands. The caliber inside the case is the self-winding Patek Philippe 315 SQA movement, which contains 35 jewels and boasts a 48-hour power reserve. Watch is on a golden brown alligator strap with matching 18K rose gold tang buckle.