Omega · LadyMatic

Strap for LadyMatic Co-Axial 34 Red Gold / Diamond / Brown / Bracelet

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

18mm

18 mm straps All Omega

Lug width18 mm

Case diameter34 mm

Reference425.65.34.20.63.001 (aka: 42565342063001)

FamilyLadyMatic

MovementOmega caliber 8521 hours, minutes, seconds | date | chronometer, co-Axial escapement

Year2013

CaseRed Gold

Recommended spring bar

Spring bars Omega 18mm — single diameter

Technical match for lug width and diameter · lug 18 mm · Ø 1.8 mm

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All Omega spring barsOpen →

Straps for the LadyMatic 425.65.34.20.63.001 (aka: 42565342063001)

Selected for the 18 mm lug width

All 18 mm straps →

The LadyMatic 425.65.34.20.63.001 (aka: 42565342063001), seen from the bench

The Omega Ladymatic reference 425.65.34.20.63.001 is equipped with the automatic Calibre 8521 movement with Co-Axial escapement and chronometer certification. The movement offers hour, minute, second and date functions. The timepiece utilizes Omega's Co-Axial technology developed to reduce friction and improve long-term accuracy.

Frequently asked questions

What is the lug width of the Omega LadyMatic 425.65.34.20.63.001?

The lug width is 18 mm. This measurement determines the width of the compatible strap. To verify, use a digital caliper positioned between the two case lugs, measured from the inside.

Which strap is best suited for the Omega LadyMatic in Red Gold?

Dark brown or black alligator is the most elegant and harmonious choice, as the regular grain perfectly complements the polished finish of the rose gold case. Vegetable-tanned calf leather remains an excellent alternative for those who appreciate natural patina development over time.

How do I change the strap on my LadyMatic 425.65.34.20.63.001?

Strap replacement requires a specific tool (spring bar tool) to extract the fixing pins. If you do not own the tool, the Casati Milano atelier offers personalized installation service with WhatsApp updates.

Can I use an aftermarket 18mm strap on this Omega?

Yes, all 18mm straps are compatible with the lug width of the LadyMatic 425.65.34.20.63.001. Milano Straps offers a selection of artisanal straps in various materials and finishes, customizable to order.

How long does a leather strap last on this watch?

Durability depends on use and leather quality. A high-quality alligator or shell cordovan strap lasts 4-6 years with daily wear. Vegetable-tanned leather tends to age elegantly, developing patina. Casati Milano offers an 18-month warranty on personalized straps.

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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Casati Milano · Via XX Settembre 15, Milan · by appointment only