Omega · Aqua Terra

Strap for Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Silver

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

Lug width

20mm

20 mm straps All Omega

Lug width20 mm

Case diameter39 mm

Reference231.13.39.21.02.001 (aka: 23113392102001)

FamilyAqua Terra

MovementOmega caliber 8500 hours, minutes, seconds | date | chronometer, co-Axial escapement

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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All Omega spring barsOpen →

Straps for the Aqua Terra 231.13.39.21.02.001 (aka: 23113392102001)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Aqua Terra 231.13.39.21.02.001 (aka: 23113392102001), seen from the bench

The Aqua Terra is part of Omega's Seamaster collection and represents the most elegant version of the dive line. The model is powered by the automatic caliber 8500 with co-axial escapement and chronometer certification. The case features the characteristic 'teak' patterned dial inspired by luxury yachts.

Frequently asked questions

What is the lug width of the Omega Aqua Terra 231.13.39.21.02.001?

The lug width is 20mm, which is the distance between the pins that connect the strap to the case. This width is standard for the Aqua Terra of this generation and is essential for choosing compatible straps.

What strap material is recommended for the Omega Aqua Terra 231.13.39.21.02.001?

Alligator represents the most balanced choice: the natural texture of American crocodile suits the marine and sporty aesthetic. Shell cordovan is also excellent for those who appreciate vintage patina, and vulcanized rubber for those seeking authentic nautical practicality.

How do you change the strap on an Omega Aqua Terra 231.13.39.21.02.001?

Extract the pin from the case using a dedicated tool (available at jewelers or online). The operation is reversible and non-destructive. We recommend keeping the original bracelet as a backup and entrusting the first change to a professional.

Can I use an aftermarket strap on this Omega?

Yes, any strap with a 20mm lug width is compatible. Our artisanal straps are designed to fit perfectly on the Aqua Terra 231.13.39.21.02.001 while maintaining proportions and construction quality.

How long does a leather strap last on a sports watch like the Aqua Terra?

A quality leather strap, with ordinary maintenance, lasts 3-5 years if worn daily. Exposure to sun, salt water, and perspiration accelerates wear. Our straps include an 18-month warranty and are constructed to be repairable.

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