Omega · Aqua Terra
Strap for Seamaster Aqua Terra 150M Co-Axial 44 Chronograph White Gold / Black
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Aqua Terra 231.53.44.50.01.001 (aka: 23153445001001)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€149
Red Alligator Strap Water Resistant€195
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Hammered Calfskin Strap Light Blue€98
Vintage Olive Green Calf Leather Watch Strap€80
The Aqua Terra 231.53.44.50.01.001 (aka: 23153445001001), seen from the bench
Frequently asked questions
What is the lug width of my Omega Aqua Terra 231.53.44.50.01.001?
The lug width is 20mm. This is the internal distance between the two lugs on the case. Measure this distance to verify compatibility: it must be exactly 20mm. Do not confuse this with the total strap width at the wrist, which depends on your specific model.
What is the best strap for the Omega Aqua Terra 231.53.44.50.01.001?
It depends on usage. For formal elegance we recommend dark brown alligator or vegetable-tanned calf leather with a platinum buckle. For a more classic and durable character, cordovan shell from horse develops a beautiful patina over time. If you wear the watch frequently in the sea or in humid conditions, black rubber maintains the sporty spirit of the Aqua Terra without risk of deterioration.
How do I change the strap on my Omega Aqua Terra?
The lugs of the Omega Aqua Terra 231.53.44.50.01.001 are smooth without grooves for fastening. To change the strap, use a dedicated tool to extract the spring bar from underneath. Do not force it: the movement must be gentle. If you are not experienced, consult a professional watchmaker to avoid scratches on the white gold.
Can I mount an aftermarket strap on this Omega?
Yes, provided the lug width is 20mm. Attention: the Aqua Terra lugs in white gold are sensitive to scratches. Choose straps of tailored quality with clean lug workmanship. Milano Straps produces handcrafted straps compatible with these specific dimensions, customizable also through the Casati Milano atelier.
How long does a leather strap last on a regularly worn watch?
A quality alligator or calf leather strap, with daily use, lasts 18-24 months before showing signs of wear. Cordovan shell is more resistant (24-36 months) because the grain is naturally denser. Durability depends on humidity, sun exposure, and how much the strap touches your wrist. Casati Milano guarantees 18 months on handcrafted straps made to measure.
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

