Not a timepiece for the prudish, Ulysse Nardin’s Hourstriker Erotica Jarretière is a contemporary renaissance of the uninhibited horology that premiered in the 17th century. The black-onyx dial exposes a voyeuristic view of an interior balcony in Venice. Handcrafted Jaquemarts (animated figures) in 18-karat gold take the form of a couple reclined in carnal comfort upon a chaise, while a pair of high-heel shoes and a jarretière, or garter, lie seductively in the foreground. Behind them, the Rialto Bridge spans …