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Omega · LadyMatic

Strap for LadyMatic Co-Axial 34 Red Gold / Diamond / Brown / Diamond Bracelet

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

Lug width

16mm
16 mm strapsAll Omega
Lug width16 mm
Case diameter34 mm
Reference425.65.34.20.63.003 (aka: 42565342063003)
FamilyLadyMatic
MovementOmega caliber 8521 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial Escapement
CaseRed Gold

Spring bar

Spring bars for Omega

The right category for this model · choose the 16 mm size

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Straps for the LadyMatic 425.65.34.20.63.003 (aka: 42565342063003)

Selected for the 16 mm lug width

All 16 mm straps →

The LadyMatic 425.65.34.20.63.003 (aka: 42565342063003), seen from the bench

The Omega LadyMatic 425.65.34.20.63.003 is a contemporary evolution of a 1950s masterpiece featuring the first automatic movement designed for women. This Red Gold case measures 34mm and houses the Omega caliber 8521, an automatic mechanism with Co-Axial escapement certified COSC. The integrated Red Gold bracelet eliminates traditional lugs, creating aesthetic continuity. Lug width is 16mm, the standard for high-end women's watches.

Frequently asked questions

What is the lug width of the Omega LadyMatic 425.65.34.20.63.003?

The Omega LadyMatic 425.65.34.20.63.003 has a lug width of 16mm, the standard size for quality women's watches. This dimension is calibrated for wrists between 160mm and 190mm in circumference and allows the installation of compatible aftermarket straps of the same width.

What is the best strap for the Omega LadyMatic 425.65.34.20.63.003?

For this Red Gold model we recommend alligator in cognac or amber tones, which naturally complements the rose gold case. Vegetable-tanned calf leather is a refined and contemporary alternative, while shell cordovan offers antiquarian sophistication. Rubber is not recommended for this model, which embodies a formal aesthetic code.

How do I change the strap on my LadyMatic 425.65.34.20.63.003?

The factory bracelet is attached to the case using standard spring bars. You will need a proper tool (spring bar tool or lug removal pliers) to separate the integral bracelet and install a compatible 16mm strap. It is advisable to contact an authorized Omega service center or an experienced watchmaker.

Which aftermarket straps are compatible with the 425.65.34.20.63.003?

Any strap with a 16mm lug width is compatible with the Omega LadyMatic 425.65.34.20.63.003. Milano Straps offers a complete collection of customizable 16mm straps in leather, material, color and stitch thread, with an 18-month warranty.

How long does a leather strap last on a watch like the LadyMatic?

A premium quality leather strap (alligator, vegetable-tanned calf, shell cordovan) has an average lifespan of 3-5 years with daily wear and regular maintenance. The patina ages naturally, adding character. Milano Straps offers an 18-month warranty and allows strap replacement while preserving the buckle.

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