Strap for Constellation Co-Axial 38 Yellow Gold / Silver

The Constellation reference 123.50.38.21.52.002 has a lug width of 20 millimeters. This is the standard lug width for 38 millimeter diameter watches in Omega's Constellation collection, both in vintage and contemporary models.

For the Constellation 123.50.38.21.52.002 in yellow gold, we recommend medium brown or cognac alligator for classic elegance, shell cordovan for extreme durability, or vegetable-tanned calf leather for versatility. The warm tones of leather naturally complement the patina of yellow gold.

Position a digital caliper or millimeter ruler between the two lugs of the case at the strap insertion point. The internal distance is exactly 20 millimeters. Always measure at the case 'shoulders' to avoid parallax errors.

Yes, all straps with a 20 millimeter lug width are compatible with your Constellation. Quality artisanal aftermarket straps require no modifications to the original lugs and offer superior aesthetic options compared to the integrated bracelet.

A quality artisanal alligator or calf leather strap typically lasts 3-5 years with moderate use (4-5 times per week), up to 7-8 years with regular care and occasional use. Shell cordovan has superior longevity, often exceeding 10 years. Maintenance frequency and humidity exposure are critical variables.