Technical Archive

Breitling
Premier A45340241B1P2— lug 20mm

Breitling Premier A45340241B1P2: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Premier Automatic Day & Date 40 Stainless Steel / Black / Croco Black / Tang

Artisanal Note

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

Technical Specifications

Breitling A45340241B1P2
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

A45340241B1P2

Movement

Breitling caliber Caliber 45 Hours, Minutes, Seconds | Date, Day | Chronometer

The Heritage

The Breitling Premier A45340241B1P2 belongs to a collection rooted in 1940s aesthetics, when Breitling built its reputation as a precision watchmaker for aviators and professionals. It houses the Breitling Caliber 45, a COSC-certified chronometer movement guaranteeing ±4 seconds per day precision, with hours, minutes, seconds, date and day-of-week indication. The stainless steel case measures 40mm in diameter, a classically proportioned size suited to average European wrists. Lug width is 20mm, a standard specification that accommodates a wide selection of aftermarket straps.

FAQ

What is the lug width of the Breitling Premier A45340241B1P2?

The lug width of the Breitling Premier A45340241B1P2 is 20mm. This measurement is taken internally between the two lugs at the 6 o'clock side using a millimetre calliper. It is a widely adopted standard that allows for a broad selection of quality aftermarket straps.

What is the best strap for the Breitling Premier A45340241B1P2?

For the Breitling Premier A45340241B1P2, the most suitable straps are a padded alligator in vegetable-tanned leather for formal occasions, a smooth fine-grain calf leather for everyday versatility, and vulcanised rubber for sporting contexts. A tobacco or cognac tone enhances the watch's classic details, whilst matte black provides formal restraint.

How do you change the strap on the Breitling Premier A45340241B1P2?

To replace the strap on the Breitling Premier A45340241B1P2, you will need a flat-tipped spring bar tool or a precision pin remover. Compress the spring bar between the lugs, slide it out laterally, and remove the strap. Take care not to scratch the stainless steel case — place a soft cloth underneath and, if unfamiliar with the procedure, consult a watchmaker.

Are there aftermarket straps compatible with the Breitling Premier A45340241B1P2?

Yes, there are many aftermarket straps compatible with the Breitling Premier A45340241B1P2, thanks to its standard 20mm lug width. Milano Straps offers an artisanal selection in leather, calf, alligator, shell cordovan, NATO webbing and rubber — all at 20mm and crafted to fit the geometry of the Breitling Premier case precisely.

How long does a leather strap last on the Breitling Premier A45340241B1P2?

The lifespan of a leather strap on the Breitling Premier A45340241B1P2 depends on leather quality and care. A high-quality vegetable-tanned strap, regularly treated with leather conditioner and kept away from excessive moisture and perspiration, can last between 3 and 5 years while retaining structural integrity and developing a distinctive patina. Shell cordovan straps tend to outlast standard leathers due to the density of the grain.