Omega · Aqua Terra

Strap for Seamaster Aqua Terra 150M Co-Axial 44 Chronograph Stainless Steel / Silver

Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.

Integrated bracelet

The Omega Aqua Terra 231.13.44.50.02.001 (aka: 23113445002001) 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.

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Case diameter44 mm

Reference231.13.44.50.02.001 (aka: 23113445002001)

FamilyAqua Terra

MovementOmega caliber 3313 hours, minutes, small seconds | date | Chronograph, column wheel | co-Axial escapement

CaseStainless Steel

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

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The Aqua Terra 231.13.44.50.02.001 (aka: 23113445002001), seen from the bench

The Omega Aqua Terra reference 231.13.44.50.02.001 is powered by the automatic Calibre 3313 with column-wheel chronograph function and co-axial escapement. The movement offers hour, minute, small second, and date indications. The watch is part of the Seamaster collection and is characterized by the high magnetic resistance typical of the series.

Frequently asked questions

Can you fit a standard strap to the Omega Aqua Terra 231.13.44.50.02.001?

No, the bracelet is integrated into the case. There are no standard lugs for a strap to attach to. If you want leather, we craft a custom lug system at <a href="/pages/casati-booking">Casati Milano</a>, engineered precisely for your watch's case geometry.

How does the bespoke strap process work for this Aqua Terra?

We work by appointment only at <a href="/pages/casati-booking">Casati Milano</a>. Bring the watch, I take measurements directly from the case, study the proportions, and design a strap that attaches perfectly. It's not an adaptation — it's a piece built for your specific case.

What leather do you recommend for the Aqua Terra?

I favour Barenia natural or honey-toned Tuscan leather. This watch has a sporting yet restrained character — the leather shouldn't compete with the brushed steel, it should converse with it. I choose leathers that patina and transform over time, much like the watch itself.

How long does a well-made strap last?

With ordinary care, 5 to 7 years of daily wear. Quality leather patinas and develops character. If you protect it from standing water and brush it occasionally, it lasts even longer. It's not consumable — it's a companion piece that ages like the watch.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only