Omega Chronostop in Jumbo version. Cal. 145.008 Fits unexpectedly good at 17,5cm wrist. Deep dial, with minute ring is lovely.
Beautiful, the chronostops are one of my favorite Omega models. Great looking diver dial. If you haven't read this article, take a look... https://thespringbar.com/blogs/guides/omega-chronostop-145-008-collectors-guide/