Breitling · Premier

Strap for Premier Automatic Day & Date 40 Stainless Steel / Black / Croco Black / Folding

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

Lug width20 mm
Case diameter40 mm
ReferenceA45340241B1P1
FamilyPremier
MovementBreitling caliber 45 hours, minutes, seconds | date, day | chronometer
Year2018
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 Premier A45340241B1P1

Selected for the 20 mm lug width

All 20 mm straps →

The Premier A45340241B1P1, seen from the bench

The Premier represents Breitling's elegant city watch line. It is powered by the Breitling 45 chronometer-certified caliber, offering hour, minute, second, date and day of the week indications. 20mm lug width for the strap.

Frequently asked questions

What is the lug width of the Breitling Premier A45340241B1P1?

The lug width of the Breitling Premier A45340241B1P1 is 20mm. This measurement is taken with a digital calliper positioned internally between the two lugs, flush with the case bezel, excluding any lateral protrusions.

What is the best strap for the Breitling Premier A45340241B1P1?

For the Premier A45340241B1P1, a vegetable-tanned alligator strap is the most coherent choice given the watch's formal-sport character. The bombé belly grain complements the case's mixed finishes. Alternatively, smooth calf or shell cordovan develop a distinguished patina over time. For active use, vulcanised rubber provides comfort and moisture resistance.

How do you change the strap on a Breitling Premier A45340241B1P1?

The strap is removed using a fine-tipped springbar tool, carefully levering out the spring bars lodged within the 20mm lugs. Care must be taken not to scratch the satin-finished case surfaces. For the first replacement, it is advisable to consult a watchmaker or a specialist atelier.

Are there aftermarket straps compatible with the Breitling Premier A45340241B1P1?

Yes, any strap with a 20mm attachment width is compatible with the Breitling Premier A45340241B1P1. Milano Straps offers a curated selection of handcrafted straps in alligator, calf, shell cordovan, NATO weave and rubber, all verified at 20mm and available with buckle or deployant clasp.

How long does a leather strap last on a Breitling Premier A45340241B1P1?

The lifespan of a leather strap depends on the material, tanning method and frequency of wear. A quality vegetable-tanned alligator strap, rotated with a second strap, can last between three and six years while developing a distinguished patina. Shell cordovan offers superior surface abrasion resistance. Prolonged contact with water and perspiration should be avoided; a deployant clasp is recommended to reduce mechanical stress on the leather.

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.

Request an appointment →

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