This this is an original Universal Geneve bumper automatic Polarouter retailed by the high end jeweler Tuler in Switzerland similar as Tiffany in the USA The watch was made in Switzerland about 1953 to 1957 It has the first generation bumper automatic movement Ref. 138SS it has 17 jewels and has just been serviced in January 2025 and is working perfectly it keeps perfect time. It measures 36 mm in diameter not including the setting crown and 45 mm in Height and 11 mm in thickness. The slightly discolored original crosshairs dial is also signed Tuler at 6 o'clock. The screw back is in good condition as is the case with wear and scratches. The leather strap is generic 18.5 mm lug width I am a repairer of watches and am always available to service watches of any type.