Omega · Aqua Terra

Strap for Seamaster Aqua Terra 150m Co-Axial 43 Annual Calendar Stainless Steel / Grey

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter43 mm
Reference231.13.43.22.06.001 (aka: 23113432206001)
FamilyAqua Terra
MovementOmega caliber 8601 hours, minutes, seconds | date, annual calendar, month | chronometer, co-Axial escapement
Year2010 - 2013
CaseStainless Steel

Recommended spring bar

Omega Spring Bars 21mm — Single Diameter

Technical match for lug width and diameter · lug 21 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Aqua Terra 231.13.43.22.06.001 (aka: 23113432206001)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Aqua Terra 231.13.43.22.06.001 (aka: 23113432206001), seen from the bench

The Aqua Terra is equipped with the automatic caliber 8601 with co-axial escapement and chronometer certification. The movement offers hour, minute, second, date and annual calendar indication with month display. 21mm lugs for the strap.

Frequently asked questions

What is the lug width of the Omega Aqua Terra 231.13.43.22.06.001?

The lug width is 21.00mm. This dimension represents the official Omega construction standard for this model and is essential to guarantee compatibility and correct aesthetic proportion of the strap on the case.

What is the best strap for the 43mm Omega Aqua Terra?

Vegetable-tanned alligator is the archetypal choice for this model: the tactile grain and natural aging harmonize perfectly with the brushed steel case. For formal elegance, shell cordovan offers an almost glassy surface. For nautical vocation, calf leather with stainless steel deployant allows rapid opening.

How do I correctly measure the lug width of my Aqua Terra?

Measure the internal distance between the two metal lugs where the strap attaches. Use a digital caliper or ruler for millimeter precision. Never round to 22mm: the exact 21mm lug width is essential to avoid excessive play and guarantee optimal comfort.

Can I use a quality aftermarket strap on this model?

Yes, provided it respects the exact 21mm lug width. A high-quality artisanal strap, with premium leather and robust stitching, is completely compatible with the Omega Aqua Terra. It is essential to contact suppliers who maintain precise construction tolerances without compromising to commercial rounding.

What is the average lifespan of a leather strap for the Omega Aqua Terra?

A premium leather strap (alligator, shell cordovan, calf) has an average lifespan of 3-5 years with daily use, provided proper maintenance: dry after water exposure, avoid prolonged humidity, do not subject to excessive twisting. Vegetable-tanned leather ages naturally, developing patina and effectively prolonging the aesthetic life of the accessory.

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