Strap for Nautilo Automatic Stainless Steel / Navy Blue / Leather

The Anonimo Nautilo AM-1002.09.006.A03 features a lug width of 20mm. This measurement is specific to larger cases (44.40mm diameter) and is critical for maintaining balanced proportions between the strap attachment points and the overall case mass. Measurement must be taken with a digital calliper between the two spring bar holes to ensure compatibility with any aftermarket strap.

The ideal strap depends on intended use and aesthetic preference. For a refined appearance, alligator or vegetable-tanned calf leather straps create elegant contrast with the satin-brushed stainless steel case. For a sport-oriented and practical approach, ballistic nylon NATO straps or butyl rubber models offer superior durability and water resistance, ideal if the Nautilo is used in marine or professional environments. Selection should consider the relationship between strap texture and the case's angular geometry.

To change the strap, remove the two spring bars (spring-loaded pins) that secure the original strap to the case. Use a spring bar tool to compress the pin and withdraw it from the lugs. Once the original strap is removed, align the new strap's attachment points with the lug holes and press the spring bars until they click into position. Verify secure attachment by gently pulling the strap in opposite directions. We recommend having this operation performed by a professional if you lack experience, to prevent case scratching.

Yes, any strap with a 20mm lug width is compatible with the Nautilo, provided the attachment is designed for standard spring bars (the most common format). Milano Straps offers a comprehensive range of 20mm straps in various materials: full-grain leather, alligator, shell cordovan, cotton NATO, butyl rubber and polyurethane. Each strap is selected to ensure correct visual proportions with the 44.40mm case, maintaining the balance of thickness and width that preserves the original aesthetic.

A leather strap's lifespan varies depending on tanning method, frequency of wear and environmental conditions. A vegetable-tanned calf strap, worn daily under normal conditions, typically lasts 3–5 years. Alligator straps, with more resilient fibres and robust collagen structure, can exceed 7–10 years. Exposure to sweat, moisture and UV rays accelerates ageing; regular maintenance with conditioning creams and moderate sun exposure (for patina development) significantly extend useful life. Rubber or NATO straps have similar durability but with less visually apparent degradation.