Here is an Omega Automatic gent's watch. The 20 jewels movement is an Omega caliber 501 with a swan neck regulator. It has been fully serviced and running accurately. The movement serial number is 15836121, dating this watch to 1957. Attractive original dial in exceptional aged condition. Original signed crown. Crystal is brand new—brand new 17mm matching high-quality genuine leather strap. The 80 micron gold plated original case measures 32.5mm, excluding the crown by 40.5mm lug tip to lug tip. This is an uncommon reference and wear best on a smaller wrist size. Case model 2865-4 SC. The wrist size in the photo is 6 inches.
1957 OMEGA AUTOMATIC WATCH
Circa: 1957
Model: Unsigned
Caliber: 501
Movement serial #: 15836121
Jewel count: 20 jewels
Movement Type: automatic wind
Case model: 2865
Case material: Gold plated
Case gasket: Does not take a gasket
Crystal: Acrylic New crystal
Crown: Signed
Case Diameter excluding crown: 32.5mm
Case length lug tip to lug tip: 40.5mm
Dial: Factory original finish
Hand type: Dauphine (original)
Strap material: genuine leather
Strap width between lugs: 17mm
Wrist size in photo: 6 inches