Omega · Aqua Terra

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

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter34 mm
Reference231.10.34.20.57.002 (aka: 23110342057002)
FamilyAqua Terra
MovementOmega caliber 8520 hours, minutes, seconds | date | chronometer, co-Axial escapement
Year2016
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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Straps for the Aqua Terra 231.10.34.20.57.002 (aka: 23110342057002)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Aqua Terra 231.10.34.20.57.002 (aka: 23110342057002), seen from the bench

The Omega Seamaster Aqua Terra 150M Master Co-Axial 34 model 231.10.34.20.57.002 features a 34 mm stainless steel case with horizontal guilloche blue Mother-of-Pearl dial. Powered by the Co-Axial 8520 chronometer-certified movement, it offers 150 meters water resistance and displays hours, minutes, seconds, and date. The 20 mm lug width is proportioned to the case's bayonet attachment points for optimal strap fit.

Frequently asked questions

What lug width does the Omega Aqua Terra 231.10.34.20.57.002 have?

The Omega Aqua Terra reference 231.10.34.20.57.002 is equipped with a lug width of 20 mm. This measurement is determined by the internal distance between the lugs of the stainless steel case. It is essential to select straps specifically designed for this width to ensure perfect fit to the attachment pins and maintain the aesthetic proportion of the watch.

What is the best strap material for this Omega model?

There is no single answer, but it depends on the context of use and the dial tone. For formal occasions, vegetable-tanned alligator offers uncompromising elegance; for daily wear, chrome-tanned Taurillon calf guarantees longevity and natural patina over time; for sports environments, finished natural rubber reflects the Aqua Terra's diving vocation while maintaining aesthetic restraint.

How do you change the strap on this Omega?

The Aqua Terra 231.10.34.20.57.002 uses a bayonet attachment to secure the strap to the lugs. To remove the previous strap, position the watch on a soft surface, locate the small notch on the bayonet and, using a dedicated tool (or a thin plastic blade), gently push it inward to release the tension. The strap will extract easily. To install the new one, insert the first end into the upper bayonet until you hear the locking click, then repeat on the lower bayonet.

What aftermarket strap can I pair with this Omega Aqua Terra?

All straps with a <a href="/pages/termine-glossario/misura-ansa">lug width</a> of 20 mm are compatible with the 231.10.34.20.57.002 model. Milanostraps offers a collection of handcrafted straps in natural leather, alligator, shell cordovan and rubber, all available with standard bayonet attachments. It is recommended to verify that the strap has a thickness not exceeding 3-4 mm to avoid friction on the lugs during strap changes.

How long does a leather strap typically last on this watch?

The durability of a leather strap for the Aqua Terra depends on the material and usage. A quality chrome-tanned calf, with daily use, maintains structural integrity for 3-5 years before showing signs of fatigue on the buckle and lug area. An alligator with vegetable tanning, thanks to greater fiber density, can extend to 7 years. A shell cordovan, for its intrinsic water resistance, can reach 10 years while maintaining shape. Regular care (drying after moisture exposure, storage in a ventilated environment) significantly prolongs this timeframe.

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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