Stainless steel screw back case with nice sharp Constellation medallion on back Caliber 561 automatic 24 jeweled movement serviced on 4/11/13 (with documentation) Serial number dates this to ~1963 Very good original pie pan dial with sunburst finish, black onyx/stainless hands and markers and applied omega logo and name Original crown with crystal in excellent shape and on very gently used generic black leather strap Case is ~34mm without crown and ~42mm lug tip to lug tip $1200 US, PayPal and CONUS shipping included…international shipping by location at my discretion! Thanks for looking and PM me here with any inquiries, thanks.