T026.420.17.281.03, T026.420.17.281.01, etc. Genuine Tissot Sea-Touch specialty silicone rubber BLACK watchband made to fit Tissot Sea-Touch models TISSOT SEA-TOUCH SILICONE STRAP WITH CLASP. Tissot Part Number: T026420A.
Title is kind of a “duh”........ this is a factory part with Tissot logos. Mine came with a black strap, I wanted to brighten up the watch, so I bought the orange strap. I looked the looks, the fit on the watch is great, and the feel on the wrist is fantastic since it is a stock Tissot strap. Seems a little pricey, but worth it if you want to change the look of your Sea Touch.