Strap for Speedmaster Professional Missions Apollo 13

The lug width of the 3597.02.00 is 20mm. To verify it, measure the distance between the two spring bar pins on the case. All straps compatible with this reference must be constructed to accommodate this width without lateral play or restriction during wear.

There is no single "best" strap, but choices that align with the model's identity. Black alligator leather maintains the original sporting austerity, bordeaux shell cordovan develops a unique patina over time, vegetable-tanned calf offers a balance between elegance and functionality, while structured rubber is the choice for authentic nautical use.

Remove the old strap by working the spring bar pins with a dedicated tool: gently press the small lateral button to retract the pin, pull the strap away from the case, then insert the new strap by aligning it perfectly before releasing the pin. Ensure that the lugs are parallel to the case.

Yes, provided it is constructed with a certified 20mm lug width and your watch's spring bars are not damaged. Artisanal quality straps guarantee more precise construction than entry-level mass-produced products, reducing the risk of slipping during intensive use.

A quality leather strap, with vegetable tanning or shell cordovan, has an average durability of 3-5 years with moderate daily wear. Longevity depends on sun exposure, ambient humidity, cleaning frequency, and usage pattern. Casati Milano straps include an 18-month warranty and can be regenerated through renewal of the finishes.