Follow this link:http://www.invictawatch.com/ Hover over the COLLECTIONS tab and click on INSTRUCTION MANUAL. There you will see RONDA and MIYOTA movement tabs. Those are two manufacturers of watch movements used to produce all INVICTA watches. RONDA is Swiss company and MIYOTA is Japanese. Check out both to find an exact match to your particular watch.Unfortunately that is all Invicta can offer. Rate me please.