Omega · Aqua Terra

Strap for Seamaster Aqua Terra 150M Master Co-Axial 34 Stainless Steel / Yellow Gold / MOP

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter34 mm
Reference231.23.34.20.55.002 (aka: 23123342055002)
FamilyAqua Terra
MovementOmega caliber 8520 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial Escapement
CaseMother of Pearl | Yellow Gold, Stainless Steel

Recommended spring bar

Spring bars Omega 18mm — single diameter

Technical match for lug width and diameter · lug 18 mm · Ø 1.8 mm

All Omega spring barsOpen →

The Aqua Terra 231.23.34.20.55.002 (aka: 23123342055002), seen from the bench

Crafted with the finest materials and attention to detail, these leather straps are the perfect complement to the Omega Aqua Terra 231.23.34.20.55.002 watch. Elevate your timepiece's style and comfort with our exquisite selection.

Frequently asked questions

What is the lug width of the Omega Aqua Terra 231.23.34.20.55.002?

The lug width is 18.00 mm. It is measured by positioning a digital caliper on the internal shoulders of the case lugs. This dimension is specific to this model and is not compatible with 20 mm or 16 mm straps.

Which strap material is best suited for this two-tone Omega Aqua Terra?

Nile alligator is the most elegant choice, as the leather texture naturally complements the iridescence of the mother-of-pearl without competing visually. For a superior alternative, shell cordovan develops a natural patina over time. Vulcanized rubber is recommended if the watch will be worn in humid or saline environments.

How do I change the strap on my 231.23.34.20.55.002?

The strap is replaced by extracting the lug pins. Position the watch on a soft support, use a spring bar tool to gently lift the lug retaining clip and slide the pin outward. Proceed with caution to avoid damaging the gilt edges of the case. The operation takes approximately 2-3 minutes per side.

Are aftermarket straps truly compatible with this Omega?

Yes, all straps with 18 mm lug width are compatible with the 231.23.34.20.55.002. Always verify the supplier's specification before purchase. On milanostraps.it all 18mm straps are guaranteed compatible with this model.

How long does a leather strap last on a watch worn daily?

A quality alligator or calf leather strap, worn every day, has an average lifespan of 3-5 years before requiring replacement. Longevity depends on ambient humidity, frequency of wear, and maintenance (regular cleaning and application of specific balms significantly extend useful life). Shell cordovan straps, thanks to the greater resistance of the leather, can exceed 7 years.

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