Omega · Aqua Terra
Strap for Seamaster Aqua Terra 150M Co-Axial 44 Chronograph Co-Axial Stainless Steel / White / Bracelet
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 231.10.44.50.04.001 (aka: 23110445004001)
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 231.10.44.50.04.001 (aka: 23110445004001), seen from the bench
Frequently asked questions
What is the exact lug width of the Omega Aqua Terra 231.10.44.50.04.001?
The lug width of the Omega Aqua Terra 231.10.44.50.04.001 is 20 millimetres. This width must be measured perpendicularly between the two attachments on the crown, that is, the internal distance between the shoulders of the pins. Precision is fundamental: even half a millimetre of error compromises the comfort and aesthetics of the strap. All our 20mm straps are designed for this reference and for Omega models with identical lug width.
Which strap is recommended for an Omega Aqua Terra chronograph?
For the Omega Aqua Terra 231.10.44.50.04.001, we primarily recommend alligator in dark shades (black, dark blue) to maintain subtle marine elegance, or burgundy shell cordovan for those desiring aesthetic ageing and exceptional durability. Vegetable-tanned calf represents a refined compromise between practicality and visual longevity. If you prefer the original sporting character, a ballistic nylon NATO remains faithful to nautical heritage. The choice depends on your daily use and the patina you wish to develop over time.
How do you change the strap on an Omega Aqua Terra?
To change the strap on your Omega Aqua Terra 231.10.44.50.04.001, position the watch on a soft surface and use a spring bar tool (threaded instrument for removing spring pins). Insert the flat tip of the tool into the lateral spaces of the spring, pushing inward while gently pulling the strap. The pin will snap out and you can extract it completely. Repeat for the second attachment. To install the new 20mm strap, reinsert the pin into its groove, align the strap properly, and press downward until you hear the locking click. If you are not experienced, entrust the task to our Casati Milano atelier.
Are aftermarket 20mm straps compatible with my Omega Aqua Terra 231.10.44.50.04.001?
Yes, all artisanal 20mm straps are compatible with the Omega Aqua Terra 231.10.44.50.04.001, provided they strictly respect the lug width specification (exactly 20 millimetres) and are equipped with standard spring pins. Our bespoke straps at the Casati Milano atelier are built specifically for this reference and guarantee comfort, durability, and aesthetics consistent with the character of your timepiece. We customise leather, colour, thickness, and buckle type or deployant clasp according to your preferences.
How long does a leather strap last on a wristwatch like the Aqua Terra?
The durability of a high-quality leather strap for the Omega Aqua Terra depends on maintenance, frequency of use, and type of tanning. An artisanal alligator or shell cordovan of quality resists 5-7 years in daily use without significant deterioration, with the caveat that leather evolves visually (patina, nuances). A vegetable-tanned calf tends to require replacement every 4-5 years. The warranty on our straps is 18 months against manufacturing defects. To prolong its life, avoid stagnant water, dry with a soft cloth after perspiration, and store away from direct heat sources.
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

