James Bond's gadget man Q would be proud this watch can lock and unlock the doors of an Aston Martin DBS.
Designed by Jaeger LeCoultre, the watch is called the AMVOX2 DBS Transponder.
The wearer can unlock the car by pushing between the eight and nine o'clock symbols, or lock it by pressing between three and four o'clock.
The transponder system in the watch is around half the size of the type found in the traditional DBS key, and weighs just a few grams.
Only Aston Martin dealerships will be able to authorise the watch to communicate with the owner's specific DBS, ensuring there are no security problems.
Further details of the watch will be revealed at the Paris motor show on October 2, but estimates suggest it will cost around 21,800.