Jonathan Bailey wears an Omega Seamaster

Dr. Henry Loomis is the paleontologist at the center of Jurassic World Rebirth, recruited to collect biomaterial samples from three of the largest prehistoric specimens alive, the raw material for a new cardiovascular drug. Gareth Edwards directed the film, which Universal released in July 2025, and Jonathan Bailey plays Loomis with an Omega Railmaster on a brown leather strap. Omega drew the connection itself: the original Railmaster of 1957 was built with anti-magnetic protection for scientists, technicians, and people working around electrical fields, and the brand called it the perfect choice for an intellectual yet adventurous Dr. Loomis.

The watch on screen is not the current Railmaster but a tribute, the 60th-anniversary edition Omega produced in the vintage style of the 1957 original, one of 3,557 pieces in stainless steel with a black dial and a Co-Axial Master Chronometer movement. Bailey is an Omega ambassador, and the casting ran past the final cut: when the film premiered, he walked the red carpets in the 38-millimeter steel Railmaster that Omega had just relaunched that May.