Strap for Nautilo Automatic Bronze / Black / NATO

The lug width of the Anonimo Nautilo AM-1002.12.007.A17 is 22mm. This measurement represents the distance between the lugs connecting the strap to the case, and it is essential for ensuring compatibility with aftermarket straps. To verify this precisely, remove the original strap and measure the space between the case lugs using a digital calliper. No variation is tolerated: a 20mm or 24mm strap will not fit correctly.

The most suitable strap depends on intended usage. For a classical and refined aesthetic, we recommend genuine alligator or shell cordovan, both capable of ageing gracefully alongside the bronze case. For daily wear and diving, leather with vegetable tanning offers natural breathability and adaptability to the wrist. NATO fabric represents the most functional and reliable choice in extreme conditions. Structured rubber maintains the Nautilo within its professional instrument context, offering grip even on wet skin.

Strap replacement requires removal of the case lugs. Use a dedicated spring bar tool to exert controlled pressure on the lug springs, leveraging inward. Once the springs are extracted, the old strap comes off easily. To fit the new 22mm strap, insert the springs into the new strap's lug holes, then reinsert them into the case lugs by applying pressure until they click shut. It is advisable to have this operation performed by a specialist on the first occasion, to avoid damage to the bronze case lugs.

All straps with a 22mm lug width are compatible with the Nautilo AM-1002.12.007.A17, regardless of material: alligator, calf leather, shell cordovan, vegetable-tanned leather, NATO fabric, rubber, canvas and structured textiles. Milano Straps offers a wide collection of 22mm straps ready for dispatch, customisable according to the client's aesthetic and functional specifications. It is essential to verify that the strap has suitable keepers for the case width and that the terminal lugs are compatible with the springs in use.

The lifespan of a leather strap depends on the tanning method and usage intensity. A high-quality alligator or shell cordovan strap, with proper maintenance (periodic cleaning and treatment with water-repellent creams), can last 4–6 years of daily wear, ageing harmoniously with the bronze case. Vegetable-tanned leather, if cared for properly, offers similar longevity. Frequent diving, direct sunlight exposure and intense perspiration accelerate wear. An annual strap replacement is recommended for those using the Nautilo in humid environments or during regular underwater activities, to preserve strap structural integrity and the reliability of the fastening system.