Technical Archive

Omega
Aqua Terra 2804.50.37— lug 20mm

Omega Aqua Terra 2804.50.37: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Seamaster Aqua Terra 150M Co-Axial 36.2 Stainless Steel / Black

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Omega 2804.50.37
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

2804.50.37

Movement

Omega caliber 2500 Hours, Minutes, Seconds | Date | Co-Axial Escapement, Chronometer

The Heritage

The Omega Seamaster Aqua Terra 2804.50.37 is a 36.20mm stainless steel sports watch from the collection launched in 2002. It features the Omega caliber 2500 Co-Axial movement, COSC chronometer certified, with reduced friction escapement technology for extended maintenance intervals. The case offers 150 meters water resistance suitable for swimming and snorkeling. The distinctive teak-textured dial references yacht racing heritage. The 20mm lug width accommodates various strap materials while maintaining visual proportions with the case diameter.

FAQ

What is the exact lug width of the Omega Aqua Terra 2804.50.37?

The Omega Aqua Terra 2804.50.37 has a lug width of 20mm, the standard distance between the two lugs. Measuring is simple: use a digital caliper and position it between the two internal pins of the case. All 20mm straps in our catalogue are mechanically compatible with this model.

What is the best strap for the Omega Aqua Terra 2804.50.37?

It depends on use. For formal occasions, we recommend vegetable-tanned alligator or shell cordovan: they develop patina over time. For immediate comfort, Italian calf. For summer and water activities, black or blue FKM rubber. The Aqua Terra accommodates any material; the choice reflects your personal style.

How do you change the strap on the Omega Aqua Terra 2804.50.37?

Position the watch on a soft pad. Using a spring bar tool (special lever for spring bars), gently push inward on one side of the bar to loosen it. Remove the bar, take off the old strap, insert the new one by aligning it with the holes, and reinsert the bar. Verify that it is locked on both sides before wearing the watch.

Is an aftermarket 20mm strap truly compatible with the Aqua Terra 2804.50.37?

Yes, if the size is certified at 20mm. Mechanical compatibility is guaranteed: standard spring bars fit and lock correctly. However, only straps intentionally made for Omega 36mm respect the proportions and finish of the case. Our straps are physically tested on this model.

How long does a leather strap last on the Omega Aqua Terra 2804.50.37?

It depends on the material and use. Daily calf: 3-4 years. Alligator or cordovan: 5-7 years, even with intensive use. FKM rubber: 4-5 years if not constantly exposed to direct UV rays. Proper maintenance—monthly cleaning with a damp cloth, annual buckle service—significantly extends the life. The Milano Straps warranty covers 18 months.

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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