It is a 1957 model year according to the serial number look up. Has a gold plated steel deployment clasp. Was serviced around 3 years ago by Omega in Switzerland. It has a refinished dial prior to me and is not perfect. Again it is a vintage timepiece, great watch and runs. Sold as is.

It is a vintage timepiece, although it has been serviced understated that they are more sensitive and may require more frequent servicing than modern timepieces.