Omega · LadyMatic
Strap for LadyMatic Co-Axial 34 Red Gold / Diamond / MOP/ Bracelet
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 LadyMatic 425.65.34.20.55.003 (aka: 42565342055003)
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 LadyMatic 425.65.34.20.55.003 (aka: 42565342055003), seen from the bench
Frequently asked questions
What is the exact lug width of the Omega LadyMatic 425.65.34.20.55.003?
The lug width of the LadyMatic 425.65.34.20.55.003 is 20mm. This parameter represents the distance between the case attachment pins and guarantees compatibility with aftermarket straps certified for this measurement. Verify with a digital caliper to exclude measurement tolerances.
Which strap material pairs best with the rose gold of the LadyMatic?
Cognac or dark brown alligator leather is the reference choice, as the natural grain perfectly complements the luminous reflection of 18k rose gold. Shell cordovan offers longevity and an evolving patina over time, while vegetable-tanned calf leather ensures softness and gradual color development during daily wear.
How do you replace the strap on this Omega model?
The LadyMatic 425.65.34.20.55.003 features integrated rose gold lugs. To remove the previous strap, use a spring bar tool to gently compress the attachment pins from one side, extracting the strap with a smooth upward motion. Align the new strap pins with the lug axes and slide until you feel the secure click.
Can I fit an 18mm or 22mm strap on this watch?
No. The 20mm lug width of the 425.65.34.20.55.003 is specific and does not accommodate other dimensions. 18mm or 22mm straps would cause excessive play, risk of detachment, and abnormal stress on the pins. It is essential to always verify 20mm compatibility before purchase.
How long does a leather strap last on an Omega of this category?
A quality leather strap (alligator, cordovan, vegetable-tanned calf) on a wristwatch with daily use has an average lifespan of 4-7 years. Wear accelerates in cases of frequent perspiration or intense sun exposure. The quality of the tanning, leather thickness, and periodic maintenance are determining factors. A NATO strap or FKM rubber strap extends durability to 10+ years with minimal visible wear.
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

