Strap for SportTaucher GMT Stainless Steel / Black / Rubber

The lug width is 20 mm. This dimension is specific to the Sporttaucher and allows fitting any strap compatible with 20 mm lugs. Measuring the lug width involves positioning the calliper between the case attachment pins: the UA8974-GS-A1.2 features two identical 20 mm lugs.

For the Sporttaucher UA8974-GS-A1.2, a vegetable-tanned leather strap—preferably alligator or calf—is recommended for daily wear and moderate sports use. For repeated diving or salt spray environments, a polyamide NATO strap or vulcanised rubber guarantees superior resistance and ease of maintenance. The choice depends on intended use and climate conditions.

To change the strap, you will need a springbar removal tool. Position the watch on a soft surface, insert the flat tip of the springbar tool into the lateral pin slot, push towards the case until release, then extract the pin. Repeat for both attachment points. Reverse the procedure to mount the new strap.

Yes. The Archimede Sporttaucher UA8974-GS-A1.2 is fully compatible with 20 mm aftermarket straps from specialised suppliers. Ensure the strap is manufactured with moisture-resistant materials, especially if the watch will experience frequent contact with salt or fresh water. Milano Straps artisan straps are verified for dimensional compatibility with this lug width.

A quality vegetable-tanned leather strap, if properly maintained (drying after prolonged water contact, annual vegetable wax treatment), retains structural and aesthetic integrity for 3-4 years with daily use. Rubber or NATO straps offer superior durability (5-7 years). The natural patina developing on leather is a foreseen and desired phenomenon in Archimede philosophy.