Omega · Museum Collection
Strap for Seamaster 1948 Central Seconds Stainless Steel / Silver / Leather
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Museum Collection 511.13.38.20.02.001 (aka: 51113382002001)
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 Museum Collection 511.13.38.20.02.001 (aka: 51113382002001), seen from the bench
Frequently asked questions
What is the lug width of the Omega Museum Collection 511.13.38.20.02.001?
The Omega Museum Collection 511.13.38.20.02.001 features a lug width of 20 millimetres. This dimension is measured between the integrated case lugs and must be measured with digital precision to guarantee perfect compatibility with aftermarket straps.
What is the best strap for the 38mm Museum Collection Omega?
For the Museum Collection 511.13.38.20.02.001 we recommend vegetable alligator (teak or cognac) for historical coherence, black shell cordovan for formal sophistication, or medium grain calf for balance between durability and elegance. The choice depends on intended use and skin tone. Milano Straps enables fitting through consultation with the Casati Milano atelier by appointment.
How do you change the strap on the Omega Museum Collection 511.13.38.20.02.001?
Strap replacement requires specific tools: a spring bar tool to release the tension springs from the old strap, and precise positioning of the bars in the new strap. Milano Straps provides step-by-step photographic support, while the Casati Milano atelier offers replacement service with quality control. Never force the bars to avoid scratching the lugs.
What aftermarket strap is compatible with this lug width?
All Milano Straps artisanal straps available in the 20mm collection are compatible with the Museum Collection 511.13.38.20.02.001. Compatibility is guaranteed only for straps with certified 20mm lug width and attachments sized according to Omega standard. Always verify technical specifications before purchase.
How long does a leather strap last on an Omega Museum Collection?
The lifespan of a leather strap depends on the material and use: vegetable alligator resists 3–5 years with maintenance, shell cordovan 4–7 years if protected from moisture, natural tan calf 2–4 years. Milano Straps offers 18-month warranty on all bespoke straps and unlimited assistance for repairs or restoration at the Casati Milano atelier.
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

