If you are familiar with the basic internal workings of a watch, you will know that the hairspring is the fine spiral or helical torsion spring used to control the rate of oscillation of the balance wheel. This thin bit of wire can literally be thought of as the heart of a mechanical watch, and its importance is in the fact that it reverses the direction of the balance wheel causing the back and forth oscillation that regulates the rate of power used and thus the timekeeping. Now, removing all that and replacing it with this all new magnetic pendulum is unprecedented and certainly a horological landmark. This TAG Heuer isn't quite ready for mainstream consumption, but it is getting there and it is good enough for application in special limited pieces such as this.
Patek Philippe will offer the Ref. 5227 in an either 18k white, rose, or yellow gold cases. Attached to the watch is a brown alligator strap and yes, it is rather comfortable. So let’s talk tech; inside the ref. 5227 is a Patek Philippe in-house made caliber 324 S C automatic movement. You have to understand that with a date complication and automatic winding, Patek Philippe intends for this watch to be not a once-in-a-while piece, but something you wear regularly. The 213 parts movement has a power reserve of about two days and includes some of Patek Philippe’s more modern features such as their Gyromax balance wheel and their Spiromax hairspring that is made of Silinvar. That represents the trio of high performance elements you probably want in a modern Patek Philippe. Kudos to Patek Philippe for actually communicating the average rate results of the 324 S C movement right in the press release (this is an extremely rare move for watch brands). Running at 4Hz, Patek claims a very impressive average rate of plus 3 to minus 2 seconds a day (according to their own rather rigorous testing). Bravo on that Mr. Stern.