Strap for Polaris Automatic Date Stainless Steel / Black / Rubber

The lug width of the Polaris Q906867J is 21mm. This measurement is specific to this model and ensures correct proportions between the 41mm case and the strap. The 21mm represents the ideal balance between case geometry and the overall footprint of the strap on the wrist.

For the Polaris Q906867J, we recommend a medium to dark brown alligator strap, which highlights the squared geometry of the case and the natural patina of the brushed steel. Alternatively, a calf leather with vegetable tanning offers a softer feel and a fascinating patina over time. For an authentic sporting character, a high-density polyamide NATO strap is excellent and durable for decades. Rubber should only be considered for water-focused contexts.

The Polaris Q906867J uses standard 21mm lugs. To change the strap, you need to remove the old one using a dedicated tool (spring bar remover) that allows you to compress the internal springs without damaging the case. Then, insert the new strap's bars into the case slots and release them. If uncertain, we recommend entrusting the operation to an experienced craftsman such as Casati Milano.

Yes, any strap with 21mm lugs is compatible with the Polaris. However, the quality and finishing of the aftermarket strap directly influence the final aesthetic. We recommend straps made from precious leather (alligator, calf, shell cordovan) by specialised craftsmen, such as those from Casati Milano, to ensure harmony between the watchmaking level of the timepiece and the strap.

A high-quality natural leather strap, crafted from precious materials such as alligator with vegetable tanning or vegetable-tanned calf, has an average lifespan of 5-8 years with normal wear. Longevity depends on frequency of use, daily care and exposure to environmental factors. Casati Milano straps include an 18-month warranty against manufacturing defects and allow periodic maintenance interventions to extend the product's useful life.