Strap for Polaris Perpetual Calendar Stainless Steel / Blue / Bracelet

The Jaeger-LeCoultre Polaris Q9088180 features a lug width of 22mm, determined by the distance between the spring bar pins that secure the strap. To verify compatibility, measure the space between the two pins: it must be exactly 22mm. Jaeger-LeCoultre selected this proportion to maintain aesthetic harmony between the 42mm case diameter and the overall height of the watch.

Alligator leather is the natural choice for the Polaris Q9088180: its fine grain and supple texture convey refinement and pair flawlessly with the case's satin-brushed steel. Alternatively, vegetable-tanned calf leather ages beautifully, developing stratified patina, while shell cordovan offers density and natural water-resistance—ideal if you engage in water activities. For summer versatility, a vulcanised rubber strap with fine-grained texture maintains the watch's sporting character.

To change the strap, you must remove the spring bar pins located at both ends of the case. Use a dedicated spring bar tool to gently depress the spring and slide the pin out of the lugs. Proceed carefully to avoid scratching the stainless steel case. Once the old strap is removed, insert the pins into the new 22mm strap and secure them in the case lugs until you hear a click. If you are inexperienced, we recommend consulting a certified watchmaker.

Any strap with a 22mm lug width is compatible with the Polaris Q9088180. Milano Straps offers a comprehensive collection of aftermarket straps in alligator, calf, shell cordovan, and rubber, all shaped for 22mm lugs. Always verify the lug measurement (22mm) and ensure the strap profile is proportionate to the 42mm case. Straps with steel buckles and deployant clasps offer ease of wear and rapid changes without mechanical stress on the watch.

The lifespan of a leather strap depends on the quality of the material and tanning method used. A first-grade alligator strap with vegetable tanning can last 5–8 years of frequent wear before showing visible signs of age. Shell cordovan is even more durable (8–10 years), whilst dyed calf requires more attentive maintenance (4–6 years). The patina that develops over time is treasured by enthusiasts, as it adds character to the watch. Casati Milano warrants all artisanal straps with 18 months coverage against manufacturing defects.