Omega men's watch 925/000 sterling silver, probably circa 1900, polished case, domed plexiglass, silvered dial with applied blued Arabic numerals, blued Breguet hands, small second at 6 o'clock, movement with anchor escapement, bi-metal balance and Breguet balance spring running, jewel bearings partly set in brass chatons, diameter 30mm, height 9mm, with black leather strap and buckle, total length 20cm