The Frederique Constant Classics Carrée Heart Beat FC-311S4C6 is a rectangular automatic watch featuring a stainless steel case measuring 30.4 x 33.3 mm with a thickness of 9.71 mm. It houses the FC-311 automatic movement, based on the Sellita SW200, offering a 38-hour power reserve and operating at 28,800 vibrations per hour. The silver dial includes a visible escapement at 12 o'clock, known as the 'Heart Beat' feature. The watch is fitted with a black leather strap and is water-resistant up to 3 ATM. Reference number: FC-311S4C6.