Strap for Speedmaster Professional Missions Gemini VI

The lug width of the Moonwatch 3597.04.00 is 20 millimeters. This measurement is specific to this model and represents the exact width between the case lugs. When ordering a strap, ensure it matches 20mm to guarantee perfect alignment with the case shoulders.

The Moonwatch accepts multiple interpretations: honey alligator for understated elegance, vegetable-tanned calf for aesthetic evolution over time, shell cordovan for elasticity and luster, NATO fabric for historical authenticity, modern rubber for everyday practicality. The choice depends on usage and context: formal elegance suggests leather, humid environments require rubber or fabric.

The strap is changed by removing the spring bars from the case lugs. Position the watch on a stable support, use a spring bar tool to compress the internal spring and slide the pin out of the lug. Gently insert the new strap by threading the spring bar, ensuring both sides are securely fastened. If you lack experience, consult a professional.

Yes, any strap with a 20mm lug width is compatible with your Moonwatch 3597.04.00. Always verify that the strap has been constructed with precise tolerances and quality materials: vegetable-tanned leathers, resistant fabrics, stainless steel finishes. An aftermarket strap of artisanal craftsmanship allows you to personalize aesthetics and function without compromising technical compatibility.

A quality leather strap, with vegetable tanning and artisanal stitching, typically lasts 18-24 months if worn daily. Longevity depends on exposure to moisture, sweat, heat sources, and the care applied: periodic cleaning with a soft cloth and rotation with a second strap significantly extends the material's lifespan. Atelier Casati Milano guarantees 18 months on made-to-measure straps.