Perpetual Calendar
43.5mm platinum case, 16.25mm thick, sapphire back, beaded crown set with a cabochon, sapphire crystal,...
43.0 mm platinum case, 15.7 mm thick, see-through sapphire glass back, arched-edge sapphire glass crystal...
43.0 mm stainless steel case, 15.7 mm thick, see-through sapphire glass back, arched-edge sapphire glass...