Omega · Railmaster
Strap for Seamaster Aqua Terra 150M Hand Wound 49.2 Railmaster Stainless Steel / Red MOP
Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Railmaster 2806.77.40 (aka: 28067740)
Selected for the 18 mm lug width
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Pink Strap with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Grey Hammered Leather Strap with Ecru Stitching€98
Swift Red Leather Strap€120
Hammered calfskin strap in cuoio€98
The Railmaster 2806.77.40 (aka: 28067740), seen from the bench
Frequently asked questions
What is the lug width of the Omega Railmaster 2806.77.40?
The Omega Railmaster 2806.77.40 is equipped with an 18mm lug width, a standard measurement in the tool watch segment that ensures aesthetic balance on the 49.20mm diameter case. This width allows for a wide range of compatible aftermarket strap options.
What strap is recommended for the Railmaster 2806.77.40?
The best materials depend on your use and style. A black alligator or vegetable-tanned calf emphasize the professional character, while a rubber or NATO strap maintain the tool watch identity. A deployant clasp is the ideal closure to ensure comfort and security on the wrist.
How do I change the strap on my Omega Railmaster 2806.77.40?
Use a spring bar tool to gently release the springs located in the lug slots of the case. Slide the spring bar out from the old strap and insert it into the new strap, then let the spring bar fall into the holes of the new lug. Ensure the spring is fully seated.
Can I mount a third-party brand strap on my Railmaster 2806.77.40?
Yes, any strap with an 18mm lug width is compatible with your Railmaster. Milano Straps offers a wide selection of artisanal 18mm straps, from alligator leather to calf, NATO and rubber, available in our online catalog.
How long does a leather strap last on an Omega like the Railmaster?
A quality leather strap, with vegetable tanning and artisanal construction, lasts 3-5 years with moderate daily wear. Longevity depends on frequency of wear, exposure to moisture and maintenance. Periodic leather conditioning significantly extends the life of the strap.
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

