The Frederique Constant Slimline Heart Beat Automatic FC-312B4S4 is a men's watch featuring a 40mm stainless steel case with rose gold PVD coating. It has a black dial with an open balance wheel at 12 o'clock, showcasing the automatic movement. The watch is powered by the FC-312 caliber, offering a 42-hour power reserve. Additional features include a sapphire crystal, 30m water resistance, and a black leather strap with a pin buckle clasp. Reference number: FC-312B4S4.
The Frederique Constant Slimline Heart Beat Automatic FC-312B4S4 is a men's watch featuring a 40mm stainless steel case with rose gold PVD coating. It has a black dial with an open balance wheel at 12 o'clock, showcasing the automatic movement. The watch is powered by the FC-312 caliber, offering a 42-hour power reserve. Additional features include a sapphire crystal, 30m water resistance, and a black leather strap with a pin buckle clasp. Reference number: FC-312B4S4.