Strap for Museum Collection CK 859

The lug width is exactly 20mm. This distance should be measured between the vent holes present on the case lugs. Even minimal variations (19.5mm or 20.5mm) compromise the strap fit, so it is essential to verify this dimension before making any purchase.

For this model we recommend vegetable-tanned alligator or shell cordovan. Both materials amplify the constructive elegance without competing visually with the smoked grey dial. Alligator offers natural geometric grain, shell cordovan develops patina over time. For contemporary versatility, FKM rubber is also a legitimate choice.

The Omega 511.12.39.21.99.002 is equipped with removable lugs via spring bar. With the appropriate tool (or with careful manual work), remove the spring bar, extract the previous strap and insert the new one. If you are not confident in the procedure, your trusted watchmaker will complete the operation in 5 minutes.

Yes, completely. Any strap with 20mm lug width fits the Omega Museum Collection lugs. It is important to verify constructive compatibility: ensure that the strap thickness is not excessive (maximum 4-5mm) so that the buckle or deployant closes without anomalous tension.

A quality leather strap (alligator, calf, shell cordovan) lasts from 3 to 7 years with regular use, depending on climate, sun exposure and maintenance. Vegetable tanning develops patina and softens over time. With proper care (protection from excessive moisture, periodic drying), the strap ages elegantly rather than deteriorating.