Gerald Charles · Maestro

Strap for Maestro Original Time DLC / Blue

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

Lug width20 mm
Case diameter39 mm
ReferenceGC20-DLC-01
FamilyMaestro
MovementGerald Charles caliber GCA 131-9391 hours, minutes, seconds | big date
Year2020
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Maestro GC20-DLC-01

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Maestro GC20-DLC-01, seen from the bench

The Gerald Charles Maestro GC20-DLC-01 is a 39mm stainless steel watch with DLC (Diamond-Like Carbon) finish, representing the contemporary evolution of Gérald Genta's design legacy. It features the Gerald Charles GCA 131-9391 calibre movement with hours, minutes, seconds and Big Date function. The 20mm lug width is essential for selecting compatible replacement straps, ensuring proper integration with the case's proportions.

Frequently asked questions

What is the lug width of the Gerald Charles Maestro GC20-DLC-01?

The lug width of the Gerald Charles Maestro GC20-DLC-01 is 20mm. This measurement represents the distance between the two strap attachment points on the case. Understanding this dimension is essential for selecting compatible aftermarket straps. You can verify it by measuring the distance between the attachment holes with a digital calliper, or by consulting the official manufacturer specifications.

What is the best strap for the Gerald Charles Maestro GC20-DLC-01?

The optimal strap choice depends on your intended use and personal preferences. For formal, sophisticated aesthetics, we recommend roasted or ebony alligator, which echoes the geometric design principles of the case. For those seeking tactile elegance and natural ageing, vegetable-tanned calf leather represents the ideal option. Shell cordovan offers legendary durability and incomparable luminosity. For contemporary versatility, NATO straps and rubber options provide practicality whilst maintaining visual coherence with the case's DLC finish.

How do you change the strap on the GC20-DLC-01?

Strap replacement is accomplished by removing the attachment pins (spring bars). Using a dedicated spring bar remover tool, gently press the pin downward to disengage the strap from its seat. Remove the old strap and insert the new one, ensuring the pins click firmly into position. It is advisable to perform this operation on a soft surface to prevent damage, or entrust the task to a professional for your first replacement.

Which aftermarket straps are compatible with the Gerald Charles Maestro GC20-DLC-01?

Any strap with a 20mm lug width is mechanically compatible with the GC20-DLC-01. This includes leather straps (alligator, calf, shell cordovan), NATO fabric straps, and technical rubber options. Mechanical compatibility is guaranteed by matching lug width; aesthetic coherence depends on your personal taste and intended use context.

How long does a leather strap last on this watch?

Leather strap longevity varies significantly based on material quality and intensity of use. A vegetable-tanned calf strap typically lasts 3-5 years with moderate daily wear. Shell cordovan, due to its superior fibrous structure, guarantees 5-10 years or longer. Alligator offers intermediate durability, approximately 4-7 years. Factors such as humidity, sun exposure, and frequency of wear directly influence longevity. Regular maintenance and proper storage (away from humidity and direct sunlight) substantially extend lifespan.

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