Technical Archive

Breitling
Top Time AB01767A1C1X1— lug 20mm

Breitling Top Time AB01767A1C1X1: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Top Time B01 Gino Bartali

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Breitling AB01767A1C1X1
Lug Width
20 mm

The essential strap measurement.

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Reference

AB01767A1C1X1

Movement

Breitling caliber Caliber B01 ND Hours, Minutes, Small Seconds | Chronograph, Column wheel | Chronometer

The Heritage

The Top Time is a Breitling chronograph equipped with the B01 caliber, an automatic movement with a column-wheel and chronometer certification. The mechanism offers hour, minute, small seconds and chronograph functions. The watch features 20mm lugs and the reference AB01767A1C1X1.

FAQ

What is the lug width of the Breitling Top Time AB01767A1C1X1?

The Breitling Top Time AB01767A1C1X1 has a lug width of 20mm. This measurement can be verified using a digital calliper, measured at the narrowest internal point between the lugs where they meet the case. The buckle end width is typically 18mm.

What is the best strap for the Breitling Top Time?

For the Top Time, a vegetable-tanned calf leather strap in a matte finish is the most coherent choice with the instrument-dial aesthetic: it develops a genuine patina over time and echoes the spirit of 1960s chronographs. For formal settings, a large-grain alligator strap works well; for sporting use, a nylon NATO is both practical and period-correct.

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

The strap is replaced using a fine-tipped springbar tool inserted into the lateral hole of each lug to compress the spring bars. It is advisable to work on a soft surface to avoid scratching the satin-finished case. Original Breitling spring bars have a 1.8mm diameter; replacing them with reinforced bars is recommended when fitting heavier leather straps.

Are there aftermarket straps compatible with the Breitling Top Time AB01767A1C1X1?

Yes. Any strap with a 20mm lug end is technically compatible. Milanostraps.it offers a curated selection of handcrafted straps in various materials, all with a 20mm attachment and typically an 18mm buckle end, available bespoke or ready to ship.

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

A quality leather strap worn daily typically lasts between 18 and 36 months. The key factor is exposure to perspiration and moisture. Rotating between two straps and applying a leather conditioner every three to four months will significantly extend its lifespan. Vegetable-tanned leathers, in particular, develop a desirable patina that adds aesthetic character over time.