It was released in 2005 in a limited edition of 7 pieces to commemorate the manufacturer's 250th anniversary.
[1][2] The Tour de I'lle wristwatch took over 10,000 hours of research and development.
[2][3] The watch has two dials and is made from pure 18K gold with a non-reflective glass of blue sapphire.
[3] It includes 834 parts and 16 horological complications, including tourbillon, minute repeater, moon phase, moon age and perpetual calendar, sky chart, sunrise, sunset and the equation of time.
On April 3, 2005, a Tour de I'lle wristwatch was auctioned by Antiquorum, reaching a final price of 1.56 million US dollars (1,876,250 CHF).