Glossary · Materials
Epsom Calf
Definition
Epsom Calf is a leather featuring an embossed, geometric grain pattern with exceptional resistance to wear and tear. I've chosen it for our watch straps because, while it's Hermès' signature leather for bags and accessories, it delivers extraordinary durability in strap format too. The stamped grain creates a surface that hides daily imperfections better than any smooth leather. Unlike naturally aged Togo, it maintains a more compact structure, making it ideal for those wanting a strap that preserves its original appearance over time. Perfect for a Rolex Submariner or Omega Seamaster: durable, easy to maintain, and with that touch of Hermès sophistication few appreciate on the wrist.
Frequently asked questions
Why choose Epsom Calf for a watch strap if Hermès uses it for bags?
Fair point. Epsom grain was engineered for extreme resistance on high-manipulation accessories. Applied to a strap, this characteristic becomes a pure advantage: total protection from daily scratching. On a Rolex Day-Date or Patek Philippe Aquanaut in 20mm, Epsom Calf maintains a flawless appearance even after years of regular wear. It's the intelligent choice of someone who doesn't want to worry about the strap but still wants that Hermès quality.
How does Epsom Calf age compared to Togo?
Natural Togo develops patina; Epsom Calf doesn't—by design. The stamped grain remains stable over time. If you love a strap that evolves and develops patina, choose Togo. If you prefer leather that stays consistent for 5, 10, 15 years, Epsom is your answer. On an IWC Pilot 21mm or Omega Seamaster 18mm, you'll see the same fresh texture years later. It's leather that doesn't play natural—it plays professional.
Which watch pairs best with Epsom Calf?
No 'best' pairing, only strategic ones. Epsom holds formal luxury: Rolex Day-Date or Submariner, Patek Philippe Aquanaut, Audemars Piguet Royal Oak in 18-20mm. On sport watches like Omega Seamaster or Tudor Pelagos 21-22mm, Epsom's grain resistance is almost mandatory. If your watch is already a statement of quality, Epsom Calf supports that statement without competing. It's the strap of someone who knows what he wears.
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