Omega · LadyMatic
Strap for Ladymatic Co-Axial 34 Yellow Gold / MOP / Bracelet
Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the LadyMatic 425.60.34.20.55.002 (aka: 42560342055002)
Selected for the 16 mm lug width
The LadyMatic 425.60.34.20.55.002 (aka: 42560342055002), seen from the bench
Frequently asked questions
What is the lug width of the Omega LadyMatic 425.60.34.20.55.002?
The lug width is exactly 16 millimetres. This measurement is the distance between the two case attachment terminals, not the case diameter itself (34 mm). It is essential to measure correctly to avoid incompatibility: straps of 14 mm or 18 mm will not fit this model without compromising the aesthetic appeal and stability of the attachment.
Which strap is best suited for the Omega LadyMatic in yellow gold?
Alligator is the traditional and coherent choice: its fine grain integrates visually well with the delicate proportions of the case. Vegetable-tanned alligator is ideal because it develops a natural patina over time that harmonises with that of yellow gold. Shell cordovan is also excellent for durability and lustre, while vegetable-tanned calf works if in dark tones. Rubber or NATO straps are not recommended, as they are too informal for a jewellery dress watch.
How do you measure lug width to change the strap?
Lug width is measured by taking the horizontal distance between the two case attachment terminals, which is the space where the strap fits. You do not measure either the case diameter or the strap thickness. In the case of the LadyMatic 425.60.34.20.55.002, this distance is 16 mm. A digital calliper is the most precise tool for this measurement.
Can I fit an aftermarket strap to my Omega LadyMatic 425.60.34.20.55.002?
Yes, it is possible to fit quality aftermarket straps, as long as they are manufactured for the 16 mm lug width. Handcrafted natural-tanned leather or shell cordovan straps often offer superior quality compared to original Omega straps, allowing for aesthetic and tactile customisation. It is essential to verify that the strap is made for this specific width to avoid forced adjustments.
How long does a leather strap last on an Omega LadyMatic?
Durability depends on the material and use. A quality alligator strap typically lasts 3-5 years with moderate daily wear; shell cordovan can last 5-7 years thanks to its inherent robustness; vegetable-tanned calf, more delicate, lasts on average 2-4 years. Vegetable-tanned straps develop a natural patina that is aesthetic, not deterioration, so they can be kept longer. Preventive replacement every 4-5 years keeps the watch in optimal condition.
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

