Strap for Constellation Quartz 24 Brushed Yellow Gold / Champagne Supernova

The lug width of model 123.50.24.60.58.001 is 16mm. This dimension is specific to this timepiece and is critical to ensure perfect compatibility with any aftermarket strap. To verify it, measure the internal distance between the two pins that hold the strap: it must be exactly 16mm. An imprecise measurement can generate undesirable mechanical play.

For a yellow gold Constellation, alligator is the natural choice: the geometric texture creates a perfect aesthetic dialogue with the case finishing. Shell cordovan offers an alternative sophistication with organic lustre. For those preferring vegetable tanning, Tuscan calf develops a progressive patina that mirrors that of gold, creating an elegant fusion. We advise against rubber or NATO fabric on this model: they would compromise the material dignity of the gold.

To change the strap on your Constellation, obtain a quality spring bar tool, available from specialized retailers. Position the watch on a soft, well-lit surface. Access the pins laterally and, with gentle movement, slide the pin out of its seat. Once extracted, slide off the old strap and insert the new one by aligning the holes. Reinsert the pin with light pressure until you hear the "click" of closure. Verify that the pin is completely locked before wearing the watch. If you are unsure, entrust the task to an expert watchmaker.

Any strap with a 16mm lug width is theoretically compatible with the 123.50.24.60.58.001, but construction quality varies enormously. milanostraps.it offers handcrafted 16mm straps in alligator, shell cordovan and vegetable leather, customizable in size, initials and stitching thread. For a complete bespoke experience, the atelier Casati Milano creates made-to-measure straps with an 18-month warranty and WhatsApp support throughout the process.

The lifespan of a leather strap depends on material quality, tanning method and frequency of use. An excellent alligator or shell cordovan strap, with vegetable tanning, guarantees 5-8 years of daily wear without structural wear, while developing a desirable personal patina. More economical leather straps degrade within 2-3 years. Casati Milano handcrafted straps, made with premium leathers and solid gold buckles, are guaranteed for 18 months against manufacturing defects and maintain impeccable aesthetics much longer if subjected to light maintenance (periodic cleaning and conditioning every 6-12 months).