Strap for Praeludium Automatic

The lug width (ansa measurement) of the Staudt Praeludium Automatic P21.031-A01 is 22 mm. This dimension is standard for the reference P21.031-A01 and determines compatibility with all aftermarket straps and bracelets available in our dedicated collection.

For the Praeludium Automatic in stainless steel, we recommend vegetable-tanned Tuscan leather in natural tones, or structured calf leather to emphasise the German sartorial aesthetic of the timepiece. Alternatively, a striped NATO or vulcanised rubber strap imparts sporting character whilst maintaining the refined demeanour of the case.

Strap replacement is achieved via screw-down lugs, located on the case at 9 and 3 o'clock. Equip yourself with specialist tools (spring bar tool) and proceed with care to avoid scratching the steel. The operation takes approximately 2-3 minutes for experienced users; should you require assistance, consult a trusted watchmaker or contact Casati Milano.

Yes, provided the strap is dimensioned for a 22 mm lug width. All our straps in the corresponding collection fit the P21.031-A01 perfectly. Verify that the lug attachment is sound and that the constructional quality is consistent with the dignity of your watch.

A quality leather strap, worn daily with reasonable care, lasts between 2 and 4 years before exhibiting significant wear. Longevity depends on factors such as the type of vegetable tanning, exposure to moisture and perspiration, and replacement frequency. Tuscan heritage leather ages nobly; we believe patina is a mark of fidelity to one's instrument, not deterioration.