Strap for Speedmaster Moonwatch Co-Axial Titanium / Blue

The lug width is 21 mm. This measurement is standard for medium to large Speedmaster models and represents the distance between the spring bars that hold the strap. Any 21 mm strap will be compatible with this reference, provided the length is suitable for a medium to large wrist.

For this titanium variant, we recommend black or dark brown alligator for formal contexts, or vegetable-tanned calf for a more dynamic approach. Aged shell cordovan in reddish brown creates a warm pairing, while grey waxed canvas racing straps maintain the sporty identity. Your choice depends on your personal style and frequency of use.

The process is straightforward: use a pointed tool (spring bar tool) to remove the spring bars holding the old strap. Insert the new spring bars into the case holes and the new strap, pressing slowly until you feel the locking click. No special expertise is required, but be careful not to scratch the titanium case lugs during the operation.

Yes, absolutely. Any strap made with a 21 mm lug width is compatible. You will find dozens of options online from specialized brands and artisans, while at the Casati Milano atelier you can order custom straps with your choice of leathers and tailored finishes, backed by an 18-month warranty.

A quality leather strap with vegetable tanning or alligator typically lasts 5-7 years with daily use and proper maintenance. Durability depends on frequency of use, sun exposure, humidity, and care: avoid prolonged exposure to hot water, protect from excessive perspiration, and occasionally apply a hydrating treatment. Natural aging is part of the charm, not a defect.