Strap for Constellation Quartz 24 Polished Yellow Gold / MOP

The lug width of the Constellation 123.50.24.60.05.004 is 20mm. This value represents the distance between the lugs (the pins on which the strap rests). To verify, remove the strap and measure with a digital caliper the space between the two holes where the pins pass through. This measurement is essential for identifying compatible straps and should not be confused with the case diameter (24mm).

For a Constellation 123.50.24.60.05.004 in yellow gold, we primarily recommend alligator or calf leather in warm tones: cognac brown, tobacco, hazelnut. Alligator amplifies the formal character and the natural grain of the leather creates aesthetic contrast with the lustre of gold. Vegetable-tanned calf offers a more contemporary alternative, developing a golden patina over time. For daily wear, a <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> in burgundy combines exceptional durability and a colour evolution that naturally dialogues with the ageing of gold.

The procedure requires delicacy. Use a specific tool called a spring bar tool: insert the flat tip into the side hole of the lug and apply gentle inward pressure, freeing one side of the lug. Remove the old strap. Repeat on the other side. For the new strap, align the lugs with the holes and push them with the tool until you feel the click of engagement. Avoid sharp impacts on the gold case: the metal is soft and scratches easily. If you are not confident, the Casati Milano team can perform the change during the creation of your custom strap.

Yes. On milanostraps.it you will find a dedicated collection of <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-20mm">20mm straps</a> ready for shipment, made from premium materials (alligator, calf, <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a>, rubber and NATO). Each strap is customizable in length, embroidered initials and stitching thread colour. All items are designed to guarantee mechanical and aesthetic compatibility with vintage and classic cases. For even more specific requirements, the Casati Milano atelier creates custom straps with personally selected materials and an 18-month warranty.

The lifespan of a leather strap depends on the material and intensity of use. A high-quality <a href="/pages/termine-glossario/alligatore">alligator</a> or <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> with <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a> resists 4-6 years with daily wear, developing a sought-after patina over time. Classic calf varies between 3-5 years. A NATO or rubber strap offers superior longevity (5-7 years) thanks to structural resistance. For a Constellation worn occasionally, the durations extend significantly. Milano Straps guarantees 18 months on all bespoke straps and offers renewal and restoration services at reasonable costs.