Strap for Seamaster Polaris Titane / Yellow Gold / Chronograph

The lug width of the TB 378.0885 is exactly 20 mm. This dimension is the standard for this specific model and must be verified accurately before ordering an aftermarket strap, measuring the internal distance between the two lugs of the case.

The TB 378.0885 pairs ideally with straps in black alligator or dark brown, or burgundy shell cordovan. Vegetable-tanned leather is also an excellent choice for those who appreciate the evolution of patina over time. The choice depends on the intended use: smart-casual for everyday wear, formal for special occasions.

Changing the strap requires the removal of the spring bars that connect the strap to the case. It is advisable to entrust this to a professional watchmaker to avoid damage to the case. The procedure involves extracting the pin using a specific tool and inserting the new strap into the 20 mm lugs.

All 20 mm straps are technically compatible with the TB 378.0885, but we recommend choosing materials and finishes that enhance the two-tone contrast of the titanium and yellow gold case. Alligator, shell cordovan, and vegetable-tanned leather straps represent the highest quality options available for this lug width.

Durability depends on the material and usage: alligator and shell cordovan last on average 3-5 years with daily wear, vegetable-tanned leather evolves over time and can last 4-6 years. Resistance increases significantly if the strap is not exposed to excessive moisture. Casati Milano guarantees its custom straps for 18 months.