FC30 Frederique Constant Classics Index. Reference FC-303B5B6. Watch measures 40mm and is made from steel. Automatic movement caliber FC-303. Sapphire crystal on the front and a closed case back. Waterproof 5ATM or 50 meters. Functions are hours, minutes, sweep seconds and date. This watch is fitted with a brand new (generic) black leather strap with the original steel pin buckle. Naturally this watch is complete with the original box and papers and original bill of purchase dated October 2016. Please be aware that this watch has been completely serviced and polished and is in mint condition again. Super classic!