Universal Swatch Irony Sistem51 watch strap. This watch strap is suitable for the Swatch Irony Sistem51 with a 42mm wide watch case.
Watch strap attachment sizes:
Inside size: 20mm
Outside size: 25mm
The silicone material has a high wearing comfort due to the flexible material. These watch straps are great for sports or to wear during hot summerdays. A big advantage of silicone is that you can easily clean it with a bit of water. Check out all our different colors for your favorite strap!
This watch strap is 20mm wide and has a special attachment, so this watch strap does not fit other watches. You attach the watch strap with a firing pin. Tip: the firing pins can only be punched in and out of the watch strap in one way. Make sure you always knock out the thick side of the pin first.
This watch strap is not original, but has a seamless fit to the watch case. Tested and found to be 100% good.
April 7, 2025
