This is an original vintage Omega Chronometre watch in solid stainless steel. The very rare large version under the case model CK 2367-3 measuring 36mm in diameter, excluding the crown by 43.5mm lug tip to lug tip. The crystal is brand new. The manual wind movement is power by a rare and highly collectible 30T2 SC RG caliber. Only a handful of this movement exists and they are known as the pre-Constellation chronometer movements. The movement serial number is 10120660 dating this watch to 1944. 16 jewels movement has been professionally serviced and running accurately. Beautiful and nicely aged factory original scientific dial. Original set of silver tone leaf hands. Will come with a brand new 18mm genuine leather strap. Wrist size in photo is 6 inches. If you're looking for a grail vintage Omega watch, this is one of them.