Strap for Diving Watch U1

The Sinn 1010.010 features 22-millimetre lugs, the standard specification for the brand's diving watches with 44mm cases. This width ensures correct proportions and seamless compatibility with high-quality aftermarket straps. To verify precisely, measure the lug width from inside to inside using a digital caliper, positioned perpendicularly.

Selection depends on intended use and aesthetic preference. For formal wear and natural ageing, alligator or vegetable-tanned calf leather are ideal choices. For tactical heritage and sustainability, a regenerated nylon NATO offers authenticity and eco-responsibility. For genuine aquatic environments, rubber is unbeatable: it resists moisture absorption and provides grip when wet. All materials are available in 22mm lug width from Milano Straps.

The process is straightforward. Obtain a spring bar tool. Position the watch with the upper lug facing upward, insert the tool into the small hole beside the lug to lift the spring bar, pull toward yourself, and the bar disengages. Repeat for the lower lug. Insert the new strap's spring bars in reverse sequence, pressing until they click into place. The entire operation takes 2-3 minutes.

Yes, provided it is manufactured for 22mm lug width. Milano Straps provides a comprehensive selection of compatible straps in leather, NATO, and rubber. Each strap is tested to ensure correct fit within the case's lug holes, without lateral play or excessive tension. Compatibility is certified for use with the 1010.010.

A quality leather strap can last 3-5 years with regular use, contingent on proper maintenance. Longevity factors include: avoiding prolonged moisture exposure, cleaning periodically with a soft, dry cloth, and applying a dedicated leather conditioner every 6-12 months. Vegetable-tanned leather ages naturally, developing patina and increasing suppleness, thereby enhancing its aesthetic character over time. Rubber and regenerated nylon NATO straps typically offer longer service life, particularly in harsh climates.