Omega · Aqua Terra

Strap for Seamaster Aqua Terra 150M Co-Axial 34 Yellow Gold / Diamond / 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
Reference231.55.34.20.55.002 (aka: 23155342055002)
FamilyAqua Terra
MovementOmega caliber 8521 hours, minutes, seconds | date | chronometer, co-Axial escapement
CaseRed Gold

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Aqua Terra 231.55.34.20.55.002 (aka: 23155342055002)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

Frequently asked questions

What is the lug width of the Omega Aqua Terra 231.55.34.20.55.002?

The lug width of the Omega Aqua Terra 231.55.34.20.55.002 is 20mm. This dimension corresponds to the space between the case lugs where the strap is inserted. It is essential to verify this measurement before purchase to ensure perfect compatibility.

Which strap is best suited for the Omega Aqua Terra in rose gold 34mm?

For the rose gold Aqua Terra, we recommend straps in alligator with medium grain texture, aged shell cordovan, or vegetable-tanned calf in chocolate, cognac, or burgundy tones. These materials enhance the warmth of the rose gold and create an elegant contrast. Avoid overly structured straps that clash with the Aqua Terra's classical approach.

How do you change the strap on a watch with 20mm lug width?

Strap replacement requires a specific tool (spring bar tool). Locate the lugs beneath the case, apply gentle pressure to release the inner spring of the spring bar, and slide out the old strap. Insert the new strap by aligning the lugs with the case terminals, then reinsert the spring bar until it clicks into place. If inexperienced, consult a professional.

Is a 20mm aftermarket strap really compatible with the Omega Aqua Terra 231.55.34.20.55.002?

Yes, any strap with 20mm lug width is physically compatible. However, aesthetic compatibility depends on style: the Aqua Terra accommodates both elegant proposals (fine leather) and sporty options (NATO, rubber). Milano Straps straps guarantee artisanal quality and finishing consistent with the luxury timepiece.

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

A quality leather strap (alligator, shell cordovan, vegetable-tanned calf) on a watch worn every day lasts an average of 3-5 years before requiring replacement. Wear depends on exposure to UV light, humidity, frequency of wear, and care. Milano Straps straps include an 18-month warranty against manufacturing defects; replacement due to natural wear is evaluated on a case-by-case basis.

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