Omega · Aqua Terra
Strap for Seamaster Aqua Terra 150M Co-Axial 43 GMT Stainless Steel / Blue
Takes 22 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 231.13.43.22.03.001 (aka: 23113432203001)
Selected for the 22 mm lug width · workshop selection
Matte Blue Alligator Strap€195
Matte Dark Brown Alligator Strap€195
Matte Grey Alligator Strap€195
Hammered Calfskin Strap Light Blue€98
Hammered Yellow Strap with Ecru Stitching€98
The Aqua Terra 231.13.43.22.03.001 (aka: 23113432203001), seen from the bench
Frequently asked questions
What lug width does the Omega Aqua Terra 231.13.43.22.03.001 have?
The Omega Aqua Terra 231.13.43.22.03.001 features a lug width of 22 millimetres. This is the space between the case lugs where the strap sits. To verify compatibility with a new strap, ensure the width is precisely 22mm – one of the most critical parameters for proper fitment and strap security.
What is the best strap for the Omega Aqua Terra 231.13.43.22.03.001?
The best strap depends on your use case and aesthetic preferences. For formal occasions, we recommend black or dark brown alligator with a stainless steel deployant clasp. For everyday elegance, Italian vegetable-tanned calf develops patina over time and offers sustainability. For brilliance and durability, shell cordovan in burgundy tones is exceptional. For casual sports contexts, a cotton or synthetic NATO strap offers practicality. Your choice reflects your personal style and the watch's primary use.
How do you change the strap on the Omega Aqua Terra 231.13.43.22.03.001?
Strap replacement requires a spring bar tool – a specialized instrument designed to compress the spring-loaded bars that secure the strap to the lugs. Position the tool beneath the spring bar from the rear of the lug, apply gentle pressure to compress the spring, then remove the strap. Repeat on the opposite lug. Insert the new strap by aligning the holes with the spring bars, then press firmly until they click into place. If unfamiliar with this procedure, entrust the task to an experienced technician to avoid damage to the lugs or bars.
Is there an aftermarket strap compatible with the 231.13.43.22.03.001?
Yes, numerous manufacturers offer aftermarket straps with a 22mm lug width compatible with the 231.13.43.22.03.001. Online, you'll find extensive selections in alligator, calf leather, cordovan, and rubber – all customisable in length and personalization options. The key is verifying that the lug width is precisely 22mm and that the spring bars are the correct diameter (typically 1.4mm for this case). Artisanal straps typically offer superior quality compared to mass-produced alternatives.
How long does a leather strap last on the Omega Aqua Terra 231.13.43.22.03.001?
Leather strap longevity depends on material quality and usage patterns. A quality alligator or calf strap can last 3-5 years under normal conditions with regular maintenance – cleaning with a damp cloth and avoiding prolonged moisture exposure. Shell cordovan, more resilient, can last 6-8 years. Factors affecting lifespan include frequency of wear, exposure to humidity and perspiration, climate conditions, and craftsmanship quality. An 18-24 month warranty on artisanal straps is standard in the industry.
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

