This lovely ladies watch by Certina features a yellow gold case and band that are both solid 14K gold, see the pictures for the hallmarks. The watch is powered by a Certina 17 jewel hand winding movement and it is keeping time very well. The band on this watch has wonderful intricately carved details. This vintage watch was made circa 1963 to 1967. There are over 14.5 grams of 14K gold used in the case and band of this watch (see photo on scale). The watch overall weight with the movement included is 18.18 grams. Let me know if you have any questions and I will try to respond as quickly as possible. Let me know if you want to arrange to look it over in person to see if it is what you want.