Strap for Maestro Original Time DLC / Black

The Gerald Charles Maestro GC20-DLC-00 features a lug width of 20 millimetres. This measurement is the international standard for watches in the 38–40 millimetre diameter range and ensures compatibility with a broad spectrum of artisanal straps. The lug geometry incorporates bevelled shoulders with a transition angle of approximately 120 degrees, making anatomically profiled thin straps preferable to heavily curved options.

For the GC20-DLC-00, we recommend alligator leather with vegetable tanning in medium cognac or dark brown: the rectilinear grain and natural patina dialogue ideally with the brushed steel and DLC coating. Shell cordovan from horse leather represents an equally compelling choice, developing a unique patina over time. For a sportive aesthetic, a cotton silk NATO strap in dark grey or navy blue delivers practicality whilst maintaining stylistic coherence.

Strap replacement requires a spring bar tool—a specialised lever readily available through our catalogues. Position the watch on a soft surface, locate the spring release hole on the lug shoulder, gently insert the tool tip into the hole, and press laterally to release the spring. Once the first end is freed, repeat on the opposite side. When fitting the new strap, insert the spring pin into the strap's corresponding holes, then press until you hear an audible click. Avoid abrupt movements or excessive twisting of the spring mechanism.

Yes, any strap with a 20 millimetre lug width is compatible with the GC20-DLC-00, including artisanal models. However, verify that the strap profile—particularly in the insertion zone—is not overly curved, as the lug features bevelled shoulders. High-quality straps with reduced thickness (2.5–3.5 millimetres) adapt more effectively and maintain visual proportions consistent with the case. Numerous leather, textile, and rubber options in 20 millimetre width are available online through Milano Straps.

Leather strap longevity depends on leather type, usage frequency, and environmental conditions. High-quality alligator or calf leather with vegetable tanning guarantees 3–5 years of daily wear before significant edge deterioration. Shell cordovan, owing to fibre density, can endure 7–10 years. Prolonged exposure to sunlight, humidity, and perspiration accelerates ageing. An FKM rubber (Viton) strap retains elastic properties for 15–20 years without visible degradation. Periodic replacement is recommended not merely for aesthetics but to prevent lug damage from friction.