Strap for Nav B-Uhr 44 ST1 Premium Anthracite

The lug width of the P0907 is 22mm. This measurement defines aftermarket strap compatibility: verify the distance between the two attachment points on the case (lug-to-lug spacing) to confirm. On this model, 22mm is the factory standard, ensuring integration without excessive play or tension.

There is no absolute choice, but selection depends on use-case: alligator offers luxury and developing patina; vegetable-tanned calf guarantees suppleness and colour evolution; premium NATO ensures tactical practicality and rapid changeover; FKM rubber eliminates summer swell and provides grip. For the P0907, we recommend earth-tone leather (cognac, grey) or Midnight Black NATO for maximum visual contrast.

The P0907 is fitted with standard spring bars. Proceed as follows: 1) Locate the spring bar on one side of the case; 2) Using a spring bar tool (or fine-tipped implement), gently compress the bar inward; 3) Extract the bar from the lug; 4) Repeat on the opposite side. To install the new strap, insert the bars into the lugs and ensure both sides are securely locked.

Yes, provided the lug width is precisely 22mm. However, verify that the strap shoulders (contact points with the case) match your case profile. Quality artisanal straps, such as those from Milano Straps, are tested for dimensional consistency and guarantee perfect integration without tension on standard spring bars.

An untreated or vegetable-tanned leather strap typically lasts 3–5 years under moderate use conditions (non-daily wear), depending on environment, humidity and care. Alligator and high-density leathers endure 5–7 years. Durability increases if the strap is not subjected to chronic perspiration, dried after water contact, and occasionally treated with purpose-made balms. NATO and rubber exceed 10 years of intensive use.