Omega · LadyMatic

Strap for LadyMatic Co-Axial 34 Stainless Steel / Blue MOP

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter34 mm
Reference425.32.34.20.57.002 (aka: 42532342057002)
FamilyLadyMatic
MovementOmega caliber 8520 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial Escapement
CaseStainless Steel

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the LadyMatic 425.32.34.20.57.002 (aka: 42532342057002)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The LadyMatic 425.32.34.20.57.002 (aka: 42532342057002), seen from the bench

The LadyMatic features the Omega 8520 automatic caliber with a co-axial escapement and chronometer certification. The movement offers indication of hours, minutes, seconds, and date. The reference 425.32.34.20.57.002 is part of the brand's women's collection.

Frequently asked questions

What is the exact lug width of the Omega LadyMatic 425.32.34.20.57.002?

The lug width of the LadyMatic 425.32.34.20.57.002 is 20 millimetres. This measurement, from the inner left lug to the inner right lug, is specific to this model and requires straps built precisely to this width for optimal fit without lateral movement.

What are the best strap materials for the LadyMatic 425.32.34.20.57.002?

The most suitable materials are alligator (sophisticated and durable), vegetable-tanned calf (develops patina over time), shell cordovan (superior aesthetic resistance) and rubber-coated fabric (sports versatility). Black or dark brown alligator offers the most elegant contrast with the silver guilloché dial.

How do you change the strap on an Omega LadyMatic 425.32.34.20.57.002?

Strap replacement requires a specific tool to extract the spring bars that connect the case to the lugs. Gently remove the bars from one side, detach the old strap, insert the new one by aligning the ends to the case lugs and reinsert the bars. If you are not experienced, we recommend the service at the Casati Milano atelier.

Is an aftermarket 20mm strap from another brand compatible with the LadyMatic 425.32.34.20.57.002?

Yes, any strap with a 20mm lug width is compatible, provided the construction respects the proportions of the 34mm case. We recommend handcrafted straps from specialised manufacturers to ensure constructive and aesthetic quality consistent with the prestige of the watch.

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

A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) lasts on average 3-5 years with daily use, up to 7-10 years with occasional use. Durability depends on the tanning process (vegetable-tanned ages more slowly), exposure to sweat and humidity, and maintenance. Casati Milano straps guarantee 18 months of handcrafted construction.

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