Strap for Constellation Manhattan 25 Quartz Stainless Steel / Yellow Gold / Champagne - Diamond

The Omega Constellation 131.20.25.60.58.001 has a lug width of 16mm, which is the distance between the case attachment pins. This is a critical specification for purchasing compatible straps, as even a 1mm error would result in incompatibility. To measure correctly, use a digital caliper and position the measurement perpendicular to the pins, taking into account any offset (internal inclination) of the case.

For a Constellation in 18k yellow gold and 904L steel, black alligator with vegetable tanning represents the optimal choice from both aesthetic and functional perspectives. This combination creates a harmonious visual hierarchy, with black serving as a neutral chromatic anchor. Quality alternatives include cognac calf (for greater warmth) and burgundy shell cordovan (for those desiring natural patination over time).

The Constellation 131.20.25.60.58.001 uses standard attachment pins that are either screw-type or push-fit, depending on the case. If they are screw pins, a specific tool (spring bar tool) is required to unscrew them. If they are push-fit, you need to press laterally with the spring bar tool to slide the pin out. We recommend proceeding with caution on a protected surface or consulting a professional watchmaker to avoid scratching the case.

All straps with a 16mm lug width are technically compatible with this model. However, quality selection must consider strap thickness and profile: to maintain the harmonious proportions of the Constellation (25mm diameter), we recommend straps with a central width of 12-14mm that progressively widens toward the lugs. The milanostraps.it platform offers a specialized collection of 16mm straps verified for compatibility.

The lifespan of a leather strap depends on the tanning type, frequency of use, and climatic conditions. A superior quality alligator or calf with vegetable tanning has an average lifespan of 5-7 years in moderate daily use. Shell cordovan, thanks to its greater molecular density, can last 8-10 years. Constant exposure to high humidity, sweat, and UV reduces the lifespan. A well-maintained leather strap, used occasionally, can last 10-12 years. Casati Milano guarantees 18 months on bespoke straps, covering any manufacturing defects.