Staudt · Praeludium Hand Wound

Strap for Praeludium Hand Wound

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter43 mm
ReferenceP11.011-A01
FamilyPraeludium Hand Wound
MovementIsoProg caliber IP 12 Hours, Minutes, Small Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Praeludium Hand Wound P11.011-A01

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Praeludium Hand Wound P11.011-A01, seen from the bench

The Staudt Praeludium Hand Wound reference P11.011-A01 is equipped with the manual-winding IsoProg IP 12 caliber. The movement provides indication of hours, minutes and small seconds. The case features 22mm lugs.

Frequently asked questions

What is the lug width of the Staudt Praeludium Hand Wound P11.011-A01?

The lug width of the Staudt Praeludium Hand Wound P11.011-A01 is 22mm. This measurement is taken from the base of one spring bar to the other, and it allows you to fit any 22mm-compatible strap available in the global watch market—from vegetable-tanned leather to NATO fabric to FKM rubber.

Which strap is recommended for the Praeludium Hand Wound?

For the Praeludium Hand Wound, we recommend vegetable-tanned leather straps—such as Horween Chromexcel or Tuscan calf—because the natural patina they develop harmonises beautifully with the ageing of the stainless steel case. Genuine alligator imparts formality, whilst cotton NATO straps maintain the austere German construction ethos. Black or grey FKM rubber is ideal for daily wear in humid environments without aesthetic compromise.

How do you change the strap on a 22mm lug width watch?

To change the strap on a 22mm lug width: place the watch on a table with the case stable. Use a spring bar tool (small flat-head screwdriver or dedicated tool) to press the elastic pin laterally, releasing the spring that anchors the strap to the case lugs. Extract the pin with a gentle twist. Repeat on the other side. Insert the new strap, aligning the holes with the lugs, then reinstate the pin by applying pressure until it clicks into position. Verify the fit before wearing.

Can I use an aftermarket 22mm-compatible strap on the P11.011-A01?

Yes, the Staudt Praeludium Hand Wound P11.011-A01 is fully compatible with any 22mm aftermarket strap, regardless of brand or material. Standardised 22mm lug width has been established in the watch industry since the 1960s. We recommend verifying the strap thickness itself—ideally between 3 and 5mm—to ensure comfort and visual proportion relative to the 42.5mm case diameter.

How long does a leather strap last on a daily-worn watch?

A vegetable-tanned leather strap, worn daily, has a service life of 3–5 years before structural wear requires replacement. Longevity varies depending on: frequency of wear, exposure to moisture and perspiration, tanning quality, and maintenance (conditioning every 12–18 months with neutral creams). Horween Chromexcel straps tend towards the upper end of this range. Vegetable-tanned leather does not wear uniformly but patinas: when it begins to lose elasticity at the keeper junctions, replacement is advised.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only