Strap for Tourbillon Skeleton Air

The Armin Strom Skeleton TI15-TA.50 features a lug width of 20mm. This measurement represents the internal distance between the suspension pins on the case and determines strap compatibility. When purchasing a strap, always verify it is explicitly specified for this width: even 1mm deviation causes misalignment and instability during wear.

For the TI15-TA.50, we recommend straps in alligator with vegetable tanning or shell cordovan: noble materials that do not compete visually with the skeletonised movement. Matte black emphasises the titanium case, whilst cognac brown or sand beige offer warmth. For sporting contexts, navy NATO or rubber are appropriate. Avoid complex patterns: the movement is already visually intricate.

Strap replacement occurs via the suspension pins. Use a spring bar tool to compress the internal spring of each pin, then remove the old strap. Align the holes of the new strap with the pins, reinsert with the tool whilst maintaining pressure, and verify both sides lock symmetrically. Never force: correct operation is fluid. For delicate leather, entrust the procedure to Casati Milano.

An aftermarket strap is compatible only if certified for 20mm lug width. However, construction quality varies significantly: poorly finished lugs scratch the titanium case, inferior adhesives deteriorate leather, inadequate buckles loosen during wear. Milano Straps supplies exclusively tested straps for this measurement, featuring professional finishing and selected materials. Distrust generic online offerings.

A premium leather strap—alligator, shell cordovan, or vegetable-tanned calf—lasts 3–5 years with moderate use. The titanium case is chemically inert and causes no leather degradation. Longevity depends on frequency of wear, humidity exposure and maintenance: always dry the strap after rain, apply balm every 6–12 months. The natural patina that develops increases aesthetic value over time.