Since its inception in 2005, Only Watch has become the premier international watchmaking charity event, raising funds for research into Duchenne muscular dystrophy, a rare genetic disease that cruelly strikes down children and young adults.

Watchmakers donate strictly one-off pieces, or the first piece in a series, for auction at the biennial event, which takes place in Geneva next month. The 49 timepieces donated for this year’s auction represent a cross-section of the industry’s style and innovation. The buyers will be helping to make the world a better place as they add remarkable timepieces to their collections.

Here are eight examples that we think will garner the most feverish bidding.