Abraham-Louis Perrelet revolutionized the watchmaking industry when it invented the automatic self-winding movement in 1777. His son Louis-Fr?d?ric similarly had the same breakthrough when he invented the split-second chronograph. More than two centuries have passed and the family's torch shines as brilliant as ever, harnessing modern technology and producing practical watches such as the Perrelet Alarm. Measuring 42mm in 18k rose gold or stainless steel versions, the Perrelet Alarm features a sapphire front and caseback and boasts of a 50m water resistance level. The movement is automatic and guarantees an approximately 45 hour power reserve for its hours, minutes, seconds, day, date, and alarm functions. A truly handsome piece, the red tipped alarm hand mesmerizes as it travels around Perrelet Alarm's "piano key" inspired dial.