William wears a 36.2 mm mid-size Diver 300M (ref. 2561.80.00) on a bracelet; he wore it at his 2011 wedding.
Most common strap size on this line: 20 mm Source: Fratello
Prince William's watches
History3 documented facts
Prince William is documented wearing 3 watch lines: Omega Seamaster Diver 300M, Garmin Forerunner, Omega Seamaster. Each watch below links to its strap size and story.
Garmin Forerunner 2023
Seen in early 2023 with a Forerunner 245 on one wrist and the Omega Seamaster his mother gave him on the other, including at a Windsor food bank visit.
Strap size and story Source: WatchPro, Hello!
Omega Seamaster 2023
He has worn a midsize quartz Seamaster Diver 300M with a blue wave-patterned dial for over 20 years; it was a gift from his mother, Princess Diana, before her death in 1997. He wore it alongside a Garmin on his other wrist in 2023 and at Royal Ascot in 2025.
Most common strap size on this line: 21 mm Source: WWD, Hello!
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