Here is a Omega Seamaster Automatic Calendar watch in immaculate condition; one of the best example from this reference. The 24 jewels movement is an Omega caliber 562 with a swan neck regulator. It has been fully serviced and running accurately. The movement serial number is 18587170, dating this watch to 1961. Attractive original dial in exceptional condition. Original signed crown. Original signed acrylic crystal is in very good condition—brand new 18mm matching high-quality genuine leather strap. The gold-capped over stainless steel original case measures 33.7mm, excluding the crown by 42.8mm lug tip to lug tip. Case model 14701-61 SC. The calendar feature is working accurately. This watch is in its original unpolished condition. The wrist size in the photo is 6 inches.