The Alarm Travel Time reference 5520P-001 from Patek Philippe is also a GMT watch and wrist alarm clock at the same time. Using the crown at four o’clock, the wearer sets the alarm time in the windows above in 15-minute steps and 24-hour format. The alarm is switched on and off with the pusher at two o’clock. The model in the pilot design also has a GMT function – the alarm set is always based on the local time.
If the alarm is triggered, a hammer strikes a gong for a maximum of 40 seconds with 2.5 blows per second. The complications are made possible by the manufacture caliber AL 30-660 SC FUS with automatic winding. The movement is housed in a 42.2 millimeter large and 11.6-millimeter-high platinum case that is pressure-resistant up to three bars.
First Mechanical Wrist Alarm Clock With A Vibrating Alarm
The first mechanical wrist alarm clock with vibration alarm was developed by Richard Mille in cooperation with the Airbus subsidiary Airbus Corporate Jets and is called the RM 62-01 Tourbillon vibration alarm ACJ. The alarm is only audible to the watch’s wearer and is set to the minute with orange indexes on the dial between three and five o’clock. It can be switched on and off using the pusher at four.
Richard Mille implements the function via a rotating axis with an imbalance, similar to an automatic rotor that causes vibrations. The white gold weight rotates at 5,400 revolutions per minute and thus generates a noticeable vibration. In addition to the vibration alarm, the RM 62-01 Tourbillon vibration alarm ACJ has other complications such as a GMT function, an outsize date, a power reserve display, and a tourbillon. The wrist alarm clock has a 42-millimeter titanium case with a bezel of carbon TPT. Richard Mille builds the watch like the rolex explorer 2 30 times and sells each copy.