This Generic but high-quality chrome-finished crown is designed as an aftermarket replacement to fit the Tissot “T122.207” Ladies Mechanical series (cases such as the Tissot Carson) which typically require a crown with an outer diameter of approximately 4.50 mm, a height of 2.00 mm, and a seating depth around 2.50 mm, with thread/tap size M0.90. The polished chrome colour complements stainless steel or silver cases, restoring both aesthetic integrity and mechanical function when the original crown is lost, worn out or damaged, this generic replacement provides a cost-effective solution for watchmakers and enthusiasts performing restoration or maintenance. Once installed, this crown allows reliable winding and time-setting capability while preserving the symmetrical look of the original watch.