Strap for DB25 Perpetual Calendar Platinum / Rose

No, the bracelet is integrated into the case and does not accept conventional straps. The attachment is part of the watch's architecture. What I do at <a href="/pages/casati-booking">Atelier Casati Milano</a> is create a bespoke strap, studied directly on your case, that adapts to the DB25's specific geometry.

I work by appointment only at <a href="/pages/casati-booking">Casati Milano</a>, Via XX Settembre 15 in Milan. I take measurements directly from your case, study the lugs, and hand-stitch the strap to fit your wrist and your watch. No compromise, no off-the-shelf model.

I prefer Mississippi Alligator with large scales: it has the same architectural boldness as the case, a solidity that endures. If you want something warmer, vegetable-tanned Tuscan leather ages beautifully with you, developing its own patina. Barenia is the third option—elegant and resilient.

It depends on how you treat it. One built properly, with hand-stitching and quality leather, lasts me 8–12 years with regular wear. Leather improves with age: it absorbs moisture, develops a unique patina. If you care for it—occasional conditioning, no hot water—it ages as it should.

De Bethune chose bold geometry, almost uncompromising: it's a case that speaks to function and design courage. The perpetual calendar demands complex construction, and this form respects that internal logic. That's why a strap can't be improvised—it must dialogue with this constructive intelligence, not fight it.