Omega · LadyMatic

Strap for LadyMatic Co-Axial 34 Stainless Steel / MOP

Takes 12 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width12 mm
Case diameter34 mm
Reference425.33.34.20.05.001 (aka: 42533342005001)
FamilyLadyMatic
MovementOmega caliber 8520 hours, minutes, seconds | date | chronometer, co-Axial escapement
Year2013
CaseStainless Steel

Spring bar

Spring bars for Omega

The right category for this model · choose the 12 mm size

The LadyMatic 425.33.34.20.05.001 (aka: 42533342005001), seen from the bench

The Omega Ladymatic reference 425.33.34.20.05.001 is equipped with the automatic caliber 8520 with co-axial escapement and chronometer certification. The movement provides indication of hours, minutes, seconds and date. The case has a contained size in line with the feminine vocation of the collection.

Frequently asked questions

What is the exact lug width of the Omega LadyMatic 425.33.34.20.05.001?

The lug width of the Omega LadyMatic 425.33.34.20.05.001 is 12 millimetres. This measurement represents the distance between the two case lugs and is decisive for compatibility with aftermarket straps. Before purchasing a strap, verify that it is specifically designed for 12mm lugs.

What is the best strap material for this LadyMatic?

For the LadyMatic 425.33.34.20.05.001 we recommend alligator for its understated elegance and regular grain that pairs perfectly with the 34mm case. Vegetable-tanned calf offers versatility and develops natural patina over time. For those seeking absolute premium, shell cordovan guarantees superior longevity and a unique liquid lustre.

How do you change the strap on an Omega LadyMatic?

The strap is removed using a spring bar tool: insert the flat blade of the tool into the lug extraction hole and gently lift the spring clasp. Once the pins are extracted, the original strap separates from the case. For installing the new strap, position the pins in the case lugs and press until the locking click. If you are unsure, the Casati Milano atelier offers this service.

Can I use an aftermarket 12mm strap on this model?

Yes, any strap with 12mm lugs is compatible with the LadyMatic 425.33.34.20.05.001. Milano Straps provides a selection of artisanal 12mm straps ready for shipment, or you can opt for a personalised bespoke solution at Casati Milano with direct leather selection and construction specifications.

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

A quality leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with daily wear, subject to variables such as sun exposure, humidity and frequency of wear. Shell cordovan tends to last longer thanks to its density. Milano Straps and Casati Milano straps are constructed with excess leather, allowing for maintenance and potential repairs even after years of use.

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