Omega
Constellation 1501.51.00— lug 18mm

The Omega Constellation 1501.51.00 is fitted with 18mm lugs. This measurement is the standard for mid-sized Constellation models and must be measured perpendicularly between the lug pins, from the inner shoulder of one cylinder to the other. A strap of different width will not fit correctly onto the case lugs.

The choice depends on usage. For formal occasions, dark brown natural alligator enhances the elegance of the 35mm; vegetable-tanned calf leather offers everyday versatility and develops a personal patina over time. For humid environments or casual activities, anthracite grey FKM rubber guarantees practicality without aesthetic compromise. Each material should be paired with a stainless steel deployant clasp of quality.

The strap change is performed by removing the lug pins (the cylinders that secure the bracelet to the case) using a dedicated tool (spring bar removal tool). These pins are typically fitted with a retaining spring: insert the tool into the lateral holes of the case at the level of the pins, apply gentle pressure to release the spring, and extract the pin. Next, insert the new strap by aligning its holes with the pins and reposition the latter. Never force: controlled pressure is the secret.

Yes, provided the lug width is exactly 18mm. Any non-Omega strap of this measurement is physically compatible. However, to preserve the aesthetic identity of the Constellation, we recommend choosing artisanal straps in noble materials (alligator, shell cordovan, vegetable-tanned calf) and a stainless steel deployant, as these impart constructive rigor equal to the watch itself.

Durability depends on the material and usage. A quality alligator or shell cordovan easily exceeds 4–5 years of daily wear. Vegetable-tanned calf can last 3–4 years before requiring replacement due to natural wear. FKM rubber has shorter life cycles (2–3 years) but offers superior practicality. Proper maintenance—drying the strap after moisture exposure, avoiding extreme flexing—significantly extends useful life.