Breitling · Top Time

Strap for Top Time B01 Fausto Coppi

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

Lug width20 mm
Case diameter41 mm
ReferenceAB01768A1A1X1
FamilyTop Time
MovementBreitling caliber B01 ND hours, minutes, small seconds | Chronograph, column wheel | chronometer
Year2025
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 Top Time AB01768A1A1X1

Selected for the 20 mm lug width

All 20 mm straps →

The Top Time AB01768A1A1X1, seen from the bench

The Breitling Top Time B01 Fausto Coppi (reference AB01768A1A1X1) is a modern reinterpretation of the legendary 1960s racing chronograph. The 41 mm stainless steel case features a bicolour dial with panda layout, applied indices, and SuperLuminova hands. The in-house caliber B01 ND is a manual-wind movement with column-wheel chronograph mechanism, 28,800 vph frequency, approximately 70-hour power reserve, and COSC certification. The lug width is 20 mm, with moderate curvature at the case attachment point, suitable for both flat-ended and micro-curved straps.

Frequently asked questions

What is the lug width of the Breitling Top Time AB01768A1A1X1?

The lug width of the Breitling Top Time AB01768A1A1X1 is 20mm. This measurement is taken between the two inner lugs at the narrowest point of the case, and it is the key parameter for selecting a compatible aftermarket strap.

What is the best strap for the Breitling Top Time AB01768A1A1X1?

The most suitable straps for the Top Time are: vegetable-tanned calfskin leather for a balanced vintage look, square-scale alligator for formal occasions, nylon NATO for everyday sporting wear, and vulcanised rubber for technical contexts. The choice depends on the intended use and the desired chromatic pairing with the white dial and black registers.

How do you change the strap on a Breitling Top Time AB01768A1A1X1?

The strap is replaced using a flat-tipped or lever-style spring bar tool, pressing on the spring bars located in the small holes on the sides of the lugs. It is advisable to work on a soft surface to protect the case. Standard 20mm spring bars are compatible with this model.

Are there aftermarket straps compatible with the Breitling Top Time AB01768A1A1X1?

Yes. Any strap with a 20mm attachment is technically compatible with the Top Time AB01768A1A1X1. Milanostraps.it offers handcrafted straps in various materials, made with precision-fitted ends to ensure a clean fit without stressing the steel lugs of the case.

How long does a leather strap last on a Breitling Top Time?

The lifespan of a leather strap depends on the material and frequency of use. A quality vegetable-tanned calfskin strap, worn daily, typically lasts 18 to 24 months before showing significant wear. Shell cordovan and alligator have denser fibres and tend to last longer, developing a patina over time that enhances the character of the piece. Casati Milano offers an 18-month warranty against manufacturing defects.

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