Here's a very impressive and well-preserved FIRST generation vintage Longines Conquest Calendar Automatic. Conquest Longines is the equivalent of a Constellation Omega. The unpolished case is original and in excellent condition—brand new crystal. The case dimension is 35mm across, excluding the crown by 42.5mm lug tip to lug tip. The case model is 9007-8. It will come with a brand new 18mm genuine leather strap. The dial is factory original and in excellent condition. The recently serviced automatic movement is Longines caliber 19ASD. Movement serial number is 10987576 dating this watch to 1959. Rare and well preserved vintage Longines similar to this are scarce in today's market. A must-have piece for a Longines Enthusiast. The wrist size in the photo measures 6 inches.