Omega · LadyMatic

Strap for LadyMatic Co-Axial 34 Stainless Steel / Black / Bracelet

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter34 mm
Reference425.30.34.20.01.001 (aka: 42530342001001)
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 16 mm size

Straps for the LadyMatic 425.30.34.20.01.001 (aka: 42530342001001)

Selected for the 16 mm lug width

All 16 mm straps →

The LadyMatic 425.30.34.20.01.001 (aka: 42530342001001), seen from the bench

The Omega LadyMatic 425.30.34.20.01.001 is a 34mm stainless steel automatic watch with integrated bracelet and 16mm lug width. It features the caliber 8520 Co-Axial movement with 28,800 vph, 50-hour power reserve, and official METAS Chronometer precision. The case is water-resistant to 30 meters and includes a sapphire caseback; the silver dial displays hours, date window at 3 o'clock, and central seconds.

Frequently asked questions

What is the lug width of the Omega LadyMatic 425.30.34.20.01.001?

The lug width is 16mm. This measurement refers to the space between the spring bar attachments where the replacement strap is inserted. Do not confuse it with the case diameter (34mm) or the width of the integrated bracelet: the 16mm is the perpendicular distance you would measure with a caliper between the lateral attachment rings.

Which strap pairs best with the LadyMatic 425.30.34.20.01.001?

For the sophisticated and proportioned character of this model, we recommend cognac brown alligator, dark blue or black calf leather, or an anthracite grey NATO strap. The choice depends on usage: alligator for formal occasions, calf for daily versatility, NATO for sporty practicality. The Casati Milano atelier guides the selection based on your wrist and wardrobe.

How do you change the strap on an Omega LadyMatic 425.30.34.20.01.001?

The Omega LadyMatic is fitted with spring bars at the lug attachments. Obtain a spring bar removal tool (strap removal tool), position it perpendicularly under each pin, gently push upward to release the pin and remove the original bracelet. Insert the new 16mm strap by aligning the lateral holes with the pins, then press downward until they click into place. Verify that both sides are properly secured before wearing the watch.

Are there aftermarket straps compatible with this model?

Yes, absolutely. Milanostraps.it offers a complete collection of <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-16mm">16mm straps</a> in alligator, vegetable-tanned calf, shell cordovan and technical fabrics, all compatible with the spring bar system of the LadyMatic 425.30.34.20.01.001. Straps are customizable in length, initials and stitching thread. For bespoke needs with premium leathers, Casati Milano creates made-to-order straps with direct consultation via WhatsApp.

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

Durability depends on leather quality, frequency of use and care. Genuine alligator or artisanal calf leather resists 3-4 years with regular use (5-7 days weekly), developing a fascinating natural patina. Leather is not 'disposable': it simply ages. Protect it from excessive perspiration, prolonged direct sunlight and stagnant water. Casati Milano straps include an 18-month warranty and are renewable through reconditioning at the 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.

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