Strap for DB25 Chronomètre Tourbillon Starry Varius Titanium

The lug width of the De Bethune DB25 DB25STTIS3 is 20 millimetres. This measurement corresponds to the distance between the two attachment pins located at the 12 and 6 o'clock positions on the case. It is essential to verify this dimension before purchasing a strap, as an oversized or undersized lug width would compromise both the fit and the aesthetic harmony of the watch. On milanostraps.it, we offer straps specifically designed for this measurement, tested to guarantee perfect compatibility with the titanium lugs of the DB25.

For the DB25STTIS3, we recommend three principal strap categories depending on your intended use. An alligator strap in charcoal grey or intense black creates formal elegance with maximum contrast; a calf leather with vegetable tanning in brown or cognac tones generates tactile harmony with the titanium case and develops a unique patina over time; a NATO canvas in slate blue or charcoal ensures daily versatility whilst maintaining aesthetic coherence. Black rubber with fine grain finish is ideal for more dynamic contexts. Each choice should consider both the chromatic dialogue with the titanium and your desired formality level.

Changing the strap on the DB25STTIS3 requires two essential tools: a spring bar tool and a stable work surface with adequate lighting. Position the watch with the strap facing upward, insert the spring bar tool into the small lateral groove of the pin, gently push inward to compress the internal spring, and slide the pin out of the lug. Repeat for both pins. The reverse procedure installs the new strap. For high-quality artisanal straps, we recommend having this operation performed by a certified watchmaker if you lack experience, as titanium is sensitive to scratching.

Yes, aftermarket straps are compatible with the De Bethune DB25STTIS3 provided they feature exactly 20 millimetres lug width. On milanostraps.it, we offer a curated selection of artisanal straps in alligator, vegetable-tanned calf, NATO, and rubber—all calibrated to this precise measurement. Each strap is manufactured using premium materials and tested to guarantee structural compatibility. Choosing certified straps prevents the risk of damage to the titanium lugs resulting from inadequate fit.

The lifespan of a leather strap depends on usage intensity and material quality. A high-quality alligator or vegetable-tanned calf strap, worn daily with proper care, typically lasts 3–5 years before requiring replacement. At the flexing point (where the strap adheres to the wrist), leather is subjected to constant mechanical stress. Storing the watch in a dry environment, avoiding prolonged water contact, and periodically applying specific leather oils significantly extends longevity. A vegetable-tanned calf strap develops a fascinating patina over time, making strap renewal an aesthetic opportunity as well.