Here is a rare Omega Seamaster Automatic Calendar watch. This one was made for the US market (OXG on the balance bridge indicates that), and some of the US market version of this reference will come with a plain dial without the words "Seamaster Calendar" on the dial. This bumper automatic calendar watch is the first generation of the "Seamaster Calendar" model, and it is the first Omega watch movement to carry a calendar disc. The 17 jewels movement is an Omega caliber 353 with a pointer regulator. It has been fully serviced and running accurately. The movement serial number is 12527234 dating this watch to 1952. Waffle texture original dial in well-patina condition. Gold original set of dauphine hands. Original signed crown. Crystal is brand new. Brand new 18mm matching high-quality genuine leather strap. The gold-capped over steel original case measures 35.3mm excluding the crown by 43.4mm lug tip to lug tip. Case model 2627 - 2 SC. Calendar feature working accurately. This watch is in its original unpolished condition. The wrist size in the photo is 6 inches.
1952 OMEGA SEAMASTER CALENDAR
Circa: 1952
Model: Seamaster Calendar
Caliber: 353
Movement serial #: 12527234
Jewel count: 17 jewels
Movement Type: Bumper automatic wind
Case model: 2627-2 SC
Case material: Gold capped over steel
Case gasket: Flat-Ring rubber gasket
Crystal: Acrylic New crystal
Crown: Signed
Case Diameter excluding crown: 35.3mm
Case length lug tip to lug tip: 43.4mm
Dial: Factory original finish
Hand type: Dauphine (original)
Strap material: Vintage style genuine leather
Strap width between lugs: 18mm
Wrist size in photo: 6 inches