Omega · Aqua Terra
Strap for Seamaster Aqua Terra 150m Master Co-Axial 41.5 Stainless Steel / Silver / Bracelet / Golf
Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.
Integrated bracelet
The Omega Aqua Terra 231.10.42.21.02.004 (aka: 23110422102004) is designed with a bracelet integrated into the case. For a compatible made-to-measure strap, the Casati Milano atelier builds it on your watch.
Recommended spring bar
The Aqua Terra 231.10.42.21.02.004 (aka: 23110422102004), seen from the bench
Frequently asked questions
Can I fit a standard strap on the Omega Aqua Terra 231.10.42.21.02.004?
No, the bracelet is integrated directly into the case. The attachment is not a universal standard, so a commercial strap won't fit. If you want a leather strap, I craft a bespoke solution at <a href="/pages/casati-booking">Casati Milano</a>, studying your case geometry.
How does the bespoke strap work for this model?
I work by appointment only at <a href="/pages/casati-booking">Casati Milano</a>, Via XX Settembre 15, Milan. I take measurements directly from your watch, then handcraft the strap so the junction respects the original case lines. No generic adaptation—pure tailoring.
Which leather do I recommend for the Aqua Terra?
I prefer Tuscan vegetable-tanned leather or Barenia. The Aqua Terra is sportive yet elegant, born from the sea but at home in the city too. A leather that ages and patinas gracefully suits this dual nature far better than any rigid finish.
How long does a well-made strap last?
A vegetable-tanned leather strap lasts 4–6 years with regular wear, longer if you care for it properly. The key is avoiding systematic water exposure and letting it dry naturally after any moisture. You'll see the leather evolve, darken, develop a personal patina. That's not decay—it's history.
Why does the Aqua Terra have that distinctive 'teak' dial?
Omega wanted to echo the teak decks of racing yachts. It's not just aesthetics—it's narrative choice. The Aqua Terra speaks of two worlds at once: elegance from a sailing boat and underwater robustness. A natural leather strap dialogues perfectly with this heritage, adding warmth where steel stays cool.
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