A. Lange & Söhne · Zeitwerk

Strap for Zeitwerk Pink Gold / Black

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

Lug width20 mm
Case diameter42 mm
Reference142.031
FamilyZeitwerk
MovementA. Lange & Söhne caliber L043.5 small seconds, jumping hours, jumping minutes | minute repeater | Constant Force Mechanism
Year2022
CaseRose Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Zeitwerk 142.031

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Zeitwerk 142.031, seen from the bench

The A. Lange & Söhne Zeitwerk 142.031 in pink gold features the L043.5 calibre, a complex movement with jumping hours and minutes, constant-force mechanism, and 29 rubies oscillating at 3 Hz. The case measures 41.90 mm in diameter with 11.4 mm thickness, crafted in pink gold with integrated lugs. The 20 mm lug width is standard for this model. A sapphire caseback reveals the movement's architecture, reflecting Glashütte manufacturing principles that prioritize stability and precision over speed.

Frequently asked questions

What is the exact lug width of the A. Lange & Söhne Zeitwerk 142.031?

The lug width of the A. Lange & Söhne Zeitwerk 142.031 is precisely 20 mm. This measurement is determined by the geometry of the rose gold case and its integrated lugs. To verify, measure the distance between the two internal attachment points of the case where the strap secures via spring bars. A strap of different width will not fit correctly.

Which type of strap is recommended for the Zeitwerk 142.031 in rose gold?

For the Zeitwerk 142.031 in rose gold, alligator, shell cordovan, or vegetable-tanned calf leather straps are recommended. Alligator, with its ordered natural grain, creates perfect aesthetic balance without competing visually with the precious metal. Shell cordovan offers an evolving patina over time. NATO straps are discouraged due to their military character, which contrasts with the watch's sophistication.

How do you change the strap on the A. Lange & Söhne Zeitwerk 142.031?

To change the strap on the Zeitwerk 142.031, use spring bar removal tools: insert the tip under the spring bar from both sides, gently lifting until the bar retracts. Remove the old strap and slide the new one into place. Reposition the spring bars ensuring they click securely on both sides. If unsure, consult an authorised service centre to avoid damaging the case.

Is an aftermarket strap compatible with the Zeitwerk 142.031?

Yes, any strap with a 20 mm lug width is compatible with the Zeitwerk 142.031. Ensure you order the exact width (20 mm) from specialist suppliers like milanostraps.it, which also offers bespoke artisanal straps crafted at the Casati Milano atelier with an 18-month warranty against manufacturing defects.

How long does a natural leather strap last on a watch like the Zeitwerk 142.031?

A high-quality natural leather strap—alligator, shell cordovan, or vegetable-tanned calf—typically lasts 3-5 years with daily wear, depending on exposure to perspiration, moisture, and UV rays. Artisanal straps from Casati Milano, made with premium materials, tend to last longer and develop a desirable patina over time. Regular maintenance (drying after water contact, occasional cleaning) significantly extends durability.

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