Omega · LadyMatic

Strap for LadyMatic Co-Axial 34 Sedna Gold / MOP

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

Lug width18 mm
Case diameter34 mm
Reference425.62.34.20.55.004 (aka: 42562342055004)
FamilyLadyMatic
MovementOmega caliber 8521 hours, minutes, seconds | date | chronometer, co-Axial escapement
Year2016
CaseSedna Gold

Recommended spring bar

Spring bars Omega 18mm — single diameter

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

All Omega spring barsOpen →

Straps for the LadyMatic 425.62.34.20.55.004 (aka: 42562342055004)

Selected for the 18 mm lug width

All 18 mm straps →

The LadyMatic 425.62.34.20.55.004 (aka: 42562342055004), seen from the bench

The Omega LadyMatic is equipped with the automatic calibre 8521 with Co-Axial escapement and chronometer certification. The movement offers indication of hours, minutes, seconds and date. The reference 425.62.34.20.55.004 is part of the brand's ladies' collection.

Frequently asked questions

What is the lug width of the Omega LadyMatic 425.62.34.20.55.004?

The lug width of the LadyMatic 425.62.34.20.55.004 is 18mm. This dimension is determined by the proportion of the 34mm case with integrated lugs. To verify compatibility with an aftermarket strap, measure the distance between the inner edges of the two lugs using a millimeter caliper: the value must correspond exactly to 18mm to ensure perfect fit.

Which strap material pairs best with the Sedna Gold LadyMatic?

Natural alligator in dark brown or cognac tones represents the ideal choice: the fine grain and characteristic texture amplify perceived value and create an elegant contrast with the rose gold case. Alternatively, vegetable-tanned calf offers a more understated aesthetic and develops a fascinating patina over time. For those seeking versatility, Shell Cordovan in bordeaux combines robustness and sophisticated color.

How do you replace the strap on the Omega LadyMatic 425.62.34.20.55.004?

The LadyMatic 425.62.34.20.55.004 features integrated lugs on the case, so strap replacement requires the use of a specific tool (spring bar tool) to disengage and reinsert the elastic pins. Position the watch on a soft surface, use the spring bar tool to push the piston inside the pin, remove the old strap, insert the new one by aligning the lugs with the elastic pins, and release the tool. If you are not experienced, consult a professional: integrated lugs are delicate and require attention.

Are there aftermarket straps compatible with the Omega LadyMatic 425.62.34.20.55.004?

Yes. On milanostraps.it you will find artisanal 18mm straps compatible with the LadyMatic 425.62.34.20.55.004, available in various materials (alligator, calf, Shell Cordovan, rubber) and customizable for size, initials, and stitching color. The Casati Milano atelier also offers the possibility of creating fully custom straps with personal consultation and 18-month warranty.

How long does a natural leather strap last on the Omega LadyMatic?

Durability depends on the material and usage. A natural alligator strap, if subjected to regular maintenance (cleaning with a damp cloth, protection from extreme humidity and direct sunlight), maintains structural integrity for 4-6 years under daily wear conditions. Vegetable-tanned calf tends to last slightly less (3-5 years) as the leather is thinner, but develops a fascinating patina. Shell Cordovan, being denser and more compact, can exceed 7 years. FKM rubber has superior durability (8-10 years) if protected from extreme temperatures.

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