MeisterSinger · Single-Hand Watches

Strap for N° 01 Ostarrichi

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter43 mm
ReferenceEDAT15
FamilySingle-Hand Watches
MovementETA caliber 2801-2 Hours, Minutes, 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 Single-Hand Watches EDAT15

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Single-Hand Watches EDAT15, seen from the bench

The MeisterSinger Single-Hand Watches EDAT15 features a single-hand time display system indicating hours, minutes and seconds on a single dial. It is equipped with the manual-winding ETA 2801-2 caliber. The case has 20mm lugs.

Frequently asked questions

What is the lug width of the MeisterSinger EDAT15?

The lug width of the MeisterSinger EDAT15 is precisely 20mm. This measurement represents the distance between the two case lugs. It is not a standard industrial size (the most common being 18mm or 22mm), so finding a compatible strap requires careful measurement. To verify compatibility, use a calliper to measure the inside distance between the two lugs, ensuring accuracy to the millimetre.

Which strap is best suited for the MeisterSinger EDAT15?

The ideal strap depends on your intended use and aesthetic preference. An alligator leather strap offers regular, refined graining. Vegetable-tanned calf leather develops a natural patina over time. A NATO strap in fabric provides practicality and informal character. Rubber represents the most weather-resistant solution. All these materials, in 20mm width, harmonise perfectly with the minimalist philosophy of the EDAT15.

How do I change the strap on the MeisterSinger EDAT15?

To change the strap, you will need a spring bar tool. Position the tool in the gap between the lug and the old strap, applying gentle pressure to compress the internal spring of the pin. Once the new lug is inserted, ensure the pin is correctly aligned in both case attachments. If you are uncertain about this procedure, consult a professional watchmaker or specialist craftsman.

Can I use aftermarket-compatible straps on the MeisterSinger EDAT15?

Yes, absolutely. The MeisterSinger EDAT15 accepts 20mm aftermarket straps, provided they meet appropriate quality standards. Lug depth is a fundamental consideration: excessive thickness could impair the strap's smooth movement within its housing. Handcrafted Italian straps, such as those offered by MilanoStraps, are specifically dimensioned to guarantee impeccable fit.

How long does a leather strap last on a MeisterSinger EDAT15?

The durability of a leather strap depends on the material, tanning method, and frequency of wear. An alligator strap made with vegetable tanning and worn occasionally can last 8–12 years. Quality calf leather, under the same use conditions, typically lasts 5–8 years. Primary wear concentrates on the pin passage area and buckle—the critical zones that deteriorate first. Regular maintenance, avoiding prolonged water exposure and excessive humidity, significantly extends strap lifespan.

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.

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