Strap for 99.2

The lug width of the D. Dornblueth & Sohn 99.2 (01) RG is 22 millimetres. This measurement must be rigorously verified when ordering a strap, as any discrepancy (20 or 24 mm) would result in constructive incompatibility with the case. Measuring the lugs by positioning a digital calliper perpendicular to the case at the level of the internal shoulders ensures precision.

The ideal material depends on the intended use. For formal elegance, an alligator or shell cordovan strap emphasises the luxury character of the rose gold case and develops a fascinating patina over time. For daily versatility, vegetable-tanned calf leather offers wear resistance and stable colouration. A woven cotton NATO strap represents the informal and practical alternative for casual or aquatic environments.

To change the strap, you must remove the lugs using a specialised tool (sprung bar tool) or a small lever. Position the watch on a soft surface to avoid scratches. Apply pressure to the internal springs of the lug to release it from the lateral pin. Once the lug is removed, gently extract the original strap and insert the new one, ensuring it is correctly centred and the lug clicks firmly into position.

Yes, aftermarket artisanal straps are fully compatible provided they respect the 22-millimetre lug width and feature removable lugs (sprung bars). The constructive quality of straps produced by artisanal manufactures guarantees precise tolerances and noble materials. Always verify that the fixing slot is appropriate and that the strap width is proportionate to the 42-millimetre case diameter.

A quality leather strap (alligator, shell cordovan, calf) has an average lifespan of 3–5 years under normal daily use conditions. Determining factors include sun exposure, humidity, replacement frequency and preventive maintenance. Occasional conditioning with specialist creams and avoiding prolonged water contact significantly extend service life. Rubber or NATO straps offer superior durability, with longevity reaching 7–10 years.