Omega · Aqua Terra
Strap for Seamaster Aqua Terra 150M Quartz 39.2 Stainless Steel / Black / Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Recommended spring bar
Straps for the Aqua Terra 2517.50.00
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€149
Red Alligator Strap Water Resistant€195
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Hammered Calfskin Strap Light Blue€98
Vintage Olive Green Calf Leather Watch Strap€80
The Aqua Terra 2517.50.00, seen from the bench
Frequently asked questions
What is the lug width of the Omega Aqua Terra 2517.50.00?
The Omega Aqua Terra 2517.50.00 has a <a href="/pages/termine-glossario/misura-ansa">lug width</a> of 20 millimetres. This width is standard for many mid-size Seamaster and Aqua Terra models, but it is essential to verify it before purchase to avoid straps incompatible with the case lugs.
What is the best strap for the Omega Aqua Terra 2517.50.00?
The 2517.50.00 pairs beautifully with <a href="/pages/termine-glossario/alligatore">alligator</a> leather straps in brown or black for formal occasions, while <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> offers unique natural patina and softness. For daily and sports use, calf leather with <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a> resists water and wear better. Rubber or NATO straps are ideal for the sea. The choice depends on your primary use environment and personal aesthetic preference.
How do I change the strap on my Omega Aqua Terra 2517.50.00?
The Aqua Terra 2517.50.00 factory-fitted with a bracelet requires specialized disassembly at an authorized service centre. If you purchase an aftermarket strap, the change occurs by removing the spring bar pins at the lugs: use a spring bar tool (or bring the watch to a watchmaker) to free the passants and slide off the old strap. Proceed carefully to avoid scratching the case. Artisanal Milano Straps are equipped with <a href="/pages/termine-glossario/deployante">Omega-compatible deployante</a> (standard) or customized upon request.
Can I mount an aftermarket strap compatible with my Omega Aqua Terra 2517.50.00?
Yes, absolutely. The 2517.50.00 is compatible with any quality 20 millimetre strap: the <a href="/pages/termine-glossario/misura-ansa">lug width</a> is determinant, while material, colour and finishing remain personal choices. Verify that the strap is fitted with a suitable <a href="/pages/termine-glossario/deployante">deployante</a> and that the thicknesses at the lugs are proportionate to the width (typically 3-4 millimetres for medium-thickness models like this). Milano Straps are specifically designed for elegance and comfort on Aqua Terra.
How long does a leather strap last on an Omega like the 2517.50.00?
The longevity of a leather strap depends on use, climate and care. With quality <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a>, visible wear begins after 2-4 years of daily wear in humid environments (the 2517.50.00 is water-resistant, but the strap is not). <a href="/pages/termine-glossario/alligatore">Alligator</a> and <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> are more durable, lasting 4-7 years. The standard Omega warranty on aftermarket straps is 18 months; Casati Milano straps include 18-month protection against manufacturing defects. Avoid prolonged contact with warm fresh water and store away from direct sunlight.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only