TAG HEUER FORMULA 1 381.513/1 BLACK BEZEL / BLUE WATCH HEAD FOR PARTS OR REPAIRS. TAG HEUER BLACK BEZEL / BLUE WATCH HEAD FOR PARTS OR REPAIRS. 100% AUTHENTIC TAG HEUER FORMULA 1 381.513/1 CASE IN AS IS CONDITION. FOR PROJECT PARTS OR REPAIRS. Tag Heuer project for parts or repair condition. Watch is not working and no guarantees are as far as functionality. Only what is in the pictures is included in the sale. Reference number 381.513/1 can be seen very clearly on the back. Acrylic crystal is missing. If you are an international customer (outside of the US) and are having an issue completing the order, get in touch with me and I will help you find the solution. Listing and template services provided by inkFrog.