Strap for Constellation Quartz 27 Brushed Stainless Steel / Yellow Gold / Diamond / MOP

The lug width of this model is precisely 20mm. It is measured with a digital caliper by positioning the tip between the two lugs on the inner face of the case, at the points of attachment to the movement. This measurement is critical to ensure proper fit of any replacement strap.

Natural alligator is the most virtuous choice: the texture of rectangular scutes does not compete with the brilliance of mother-of-pearl, creating a refined aesthetic balance. Alternatively, fine-grained smooth calf leather or dark-toned shell cordovan maintains the sobriety of the two-tone case. Vegetable tanning, with its patina that evolves over time, amplifies the warmth of the yellow gold in the case.

The strap is changed using a dedicated tool (spring bar removal tool) to compress and extract the springs (spring bars) that connect the strap to the lugs. Position the tool in the groove under the lug, gently compress the spring until the tip emerges laterally, and the strap disengages. The operation requires care to avoid scratching the gold and steel case.

Yes, provided that the strap is made for 20mm lugs. However, the construction quality and finishing must be proportionate to the nobility of the case: Omega Constellation deserves a handcrafted leather strap (alligator, calf, shell cordovan) or premium technical fabrics. Generic straps do not restore the aesthetic value of the watch.

A handcrafted quality alligator or calf strap with vegetable tanning typically lasts 3-4 years of daily use before requiring replacement. Duration depends on frequency of use, exposure to moisture and direct sunlight, and maintenance (avoid prolonged water immersion). Shell cordovan, thanks to its more resistant parallel fibers, can reach 5-6 years. A NATO strap in technical fabric lasts 2-3 years before showing wear on the keepers.