Limited to only 10-units, the Gerald Genta Arena Metasonic just might be one of the five most expensive watches ever made, at $900,000. Its “crown bears the individual watch number, while the striking mechanism controls serving to switch between Grande Sonnerie (grand strike), Petite Sonnerie (small strike), Minute Repeater and Silence modes are within easy reach on the opposite side.” Continue reading for one more picture.

[via DviceTimezone]