Happy new year! I have a tt1 diver with the 10mm inside lug measurement. There are a few options for you on ebay if that is the same 10mm lug. There are Oris OEM metal and rubber. There is also aftermarket options that are super affordable and with many colors. They also have the lengthwise ribs that come with your watch. However I didn't see the OEM rib version. Good luck. I recently purchased a rubber strap with deployant for my tt1.