Manufacturer: Girard-Perregaux

This beautiful platinum timepiece includes an alligator band and features a Westminster minute repeater and tourbillon with three gold bridges, manual winding, 75-hour power reserve and a see-through backing.

The watch has a power reserve indicator, a subsecond complication, a minute repeater and a truly elegant face.

What differentiates Girard-Perregaux's Opera Three from other luxury watches is its ability to sound passing hours not with a beep but with actual tunes.

Price: $495,000

Image: Opera One watches