Glossary · Materials
Shark Skin (Sharkskin)
Definition
Sharkskin is an exotic leather derived from shark skin, characterized by a naturally rough and granular texture. In our atelier, we craft it into exceptional watch straps: its irregular surface, formed by tiny dermal placules, offers unique grittiness and natural grip that requires no artificial treatment. It's uncommon in the watch strap world – precisely why it captivates collectors seeking something radically different from calf, alligator, or ostrich. Shark leather is durable, resists moisture better than many leathers, and develops a fascinating patina over time. We primarily work with undyed sharkskin to preserve that wild texture. Note: shark leather is CITES-regulated for certain species; we source only from certified, legal origins of non-endangered sharks.
Frequently asked questions
Why choose sharkskin for a watch strap?
Sharkskin is the choice of collectors wanting a completely different tactile and visual experience. That granular texture isn't just aesthetic: it offers exceptional grip on the wrist, doesn't slip, and the leather breathes naturally. On a sports watch – think Submariner or GMT Master – or on a vintage dress piece, sharkskin creates personality. It's elegant provocation. And yes, it ages beautifully, developing subtle hues and a patina that tells the story of worn time.
Is sharkskin really moisture-resistant?
Yes. The structure of shark leather – those micro-placules – creates a natural barrier. It's not waterproof, of course, but it resists better than traditional calf. It's perfect for straps destined for diving watches or for anyone who loves water. A Rolex Submariner or Omega Seamaster on sharkskin breathes well and won't deteriorate. I still recommend drying thoroughly after prolonged saltwater exposure. Maintenance? Minimal. A soft cloth now and then.
What strap sizes do you recommend for sharkskin?
Sharkskin truly shines on sporty straps in 20-22mm – think Daytona at 20mm, or Explorer II at 22mm. But it works magnificently on thinner dress watches too (18-19mm), where that rough texture creates contrast with formal elegance. My advice? Sharkskin loves wrists that actually wear it, not leave it in a drawer. On an IWC Pilot or Patek Aquanaut, it becomes part of the watch's story.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only