Technical Archive

Breitling
Premier A45340241B1X1— lug 20mm

Breitling Premier A45340241B1X1: 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 / Nubuck Anthracite / Folding

Artisanal Note

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

Technical Specifications

Breitling A45340241B1X1
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

A45340241B1X1

Movement

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

The Heritage

The Breitling Premier Automatic A45340241B1X1 is a 40mm stainless steel watch with a clean case profile and sober bezel. It features the Breitling Caliber 45 COSC-certified chronometer movement with ±4 seconds per day precision, displaying hours, minutes, seconds, date, and day of the week. The 20mm lug width is the golden standard for this case size, allowing proper strap geometry. A screw-down caseback reveals the movement architecture.

FAQ

What is the lug width of the Breitling Premier A45340241B1X1?

The Breitling Premier A45340241B1X1 has a lug width of 20 mm. This measurement should be taken with a digital calliper positioned internally between the two lugs, parallel to the case. The reading must be exactly 20 mm to ensure compatibility with aftermarket straps.

What is the best strap for the Breitling Premier A45340241B1X1?

For the Premier A45340241B1X1, an alligator strap in vegetable-tanned leather is the most coherent choice given the watch's classic-elegant character. Shell cordovan is an excellent alternative, offering durability and developing a fine patina over time. For versatile formal-casual use, a vegetable-tanned calf leather strap with contrast stitching is the most adaptable option.

How do you change the strap on a Breitling Premier A45340241B1X1?

To replace the strap on the Premier A45340241B1X1, a thin-tip spring bar tool is required. Insert the tip into the lateral notch of the lug, compress the spring bar, and slide the strap free. It is advisable to work on a soft surface to protect the case, and to consult a watchmaker for the first replacement if unfamiliar with the procedure.

Are there aftermarket straps compatible with the Breitling Premier A45340241B1X1?

Yes. Any standard 20 mm spring bar strap is compatible with the Premier A45340241B1X1. Milanostraps.it offers a curated selection of handcrafted 20 mm straps in various materials and finishes, available both as bespoke commissions and for immediate online purchase.

How long does a leather strap last on a Breitling Premier A45340241B1X1?

The lifespan of a leather strap depends on material quality and usage conditions. A high-grade alligator or shell cordovan strap, with periodic conditioning and protection from moisture, will typically retain its structural and aesthetic integrity for 3 to 5 years of daily wear. A vegetable-tanned calf strap averages 2 to 3 years. Prolonged exposure to perspiration and water significantly accelerates deterioration.