Technical Archive

Omega
Railmaster 2504.52.00— lug 19mm

Omega Railmaster 2504.52.00: 19mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Seamaster Aqua Terra 150M Co-Axial 36.2 Railmaster / Bracelet

Artisanal Note

"This model requires a precise 19mm lug width to preserve the original sartorial balance."

Technical Specifications

Omega 2504.52.00
Lug Width
19 mm

The essential strap measurement.

Browse 19mm straps →
Reference

2504.52.00

Movement

Omega caliber 2403 Hours, Minutes, Seconds | Co-Axial Escapement, Chronometer

The Heritage

The Railmaster reference 2504.52.00 features the Omega caliber 2403 with Co-Axial escapement and chronometer certification. The movement offers hours, minutes and central seconds indications. The watch has 19mm lugs for the strap.

FAQ

What is the exact lug width of the Omega Railmaster 2504.52.00?

The Omega Railmaster 2504.52.00 has a lug width of 19 mm. This is a precise and non-negotiable dimension, measured between the lugs of the case. A strap must be exactly 19 mm to ensure a symmetrical and stable fit without any wobbling.

What is the best strap for the Omega Railmaster 2504.52.00?

The best strap depends on intended use. Alligator leather with natural aligned grain is the most refined choice for formal occasions, enhancing the aesthetic severity of the Railmaster. For daily wear, vegetable-tanned calf leather offers versatility and accelerated patina development. FKM rubber is ideal for those seeking contemporary functionality while maintaining the watch's sporting DNA.

How do you change the strap on the Omega Railmaster 2504.52.00?

The strap is changed using a strap removal tool. Loosen the pin securing the spring bar on one side, gently remove the spring bar, then insert the spring bar of the new strap. Repeat on both sides. Consult the Omega manual for precise instructions or contact a certified watchmaker.

Which aftermarket strap is compatible with the Omega Railmaster 2504.52.00?

Any strap with a 19 mm lug width is compatible with the 2504.52.00. Online you can find customizable artisanal straps, handcrafted in Italy with alligator, vegetable-tanned calf, rubber and fabric, available at milanostraps.it. The Casati Milano atelier also offers bespoke solutions with direct consultation.

How long does a leather strap last on an Omega Railmaster?

A quality leather strap typically lasts 3-5 years with daily use, depending on the tanning method and environmental conditions. Vegetable-tanned calf tends to wear faster at the fold but acquires a fascinating patina. Alligator, with its more resilient grain, maintains structural integrity longer. Rubber guarantees 5-7 years of unvaried functionality. All straps from milanostraps.it include an 18-month structural warranty.

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 →

By appointment only · Milan

The atelier's website: casatimilano.com