Technical Archive

Breitling
Premier A45340211G1A1— lug 20mm

Breitling Premier A45340211G1A1: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Premier Automatic Day & Date 40 Stainless Steel / Silver / Bracelet

Artisanal Note

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

Technical Specifications

Breitling A45340211G1A1
Lug Width
20 mm

The essential strap measurement.

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Reference

A45340211G1A1

Movement

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

The Heritage

The Breitling Premier Automatic A45340211G1A1 belongs to a line rooted in the 1940s, designed as a dressy alternative to pilot instruments for refined urban environments. The 40 mm stainless steel case houses the Caliber 45, a COSC-certified automatic movement with day and date display, ensuring precision within ±2 seconds/day. The strap size is 20 mm.

FAQ

What is the lug width of the Breitling Premier A45340211G1A1?

The lug width of the Breitling Premier A45340211G1A1 is 20 mm. This measurement is taken between the inner edges of the lugs where the spring bars sit. Before purchasing an aftermarket strap, it is advisable to verify this dimension with a digital calliper, as minor production tolerances may occasionally occur.

What is the best strap for the Breitling Premier A45340211G1A1?

Given the dressy-sport character of the Premier A45340211G1A1, a padded alligator strap with a wide grain pattern or a vegetable-tanned calf leather strap that develops a natural patina over time are the most coherent choices. For casual or active wear, a technical nylon NATO or a vulcanised rubber strap offer functional alternatives that respect the instrument-grade nature of the calibre.

How do you change the strap on a Breitling Premier A45340211G1A1?

Strap replacement requires a spring bar tool. Insert the forked tip into the small notch at the side of the lug, compress the spring bar and slide the strap free. The operation is non-invasive and fully reversible. Work on a soft surface to avoid scratching the stainless steel case, and always replace spring bars with ones rated for a 20 mm lug width.

Are there aftermarket straps compatible with the Breitling Premier A45340211G1A1?

Yes. Any standard 20 mm strap is compatible with the Premier A45340211G1A1. Milano Straps offers a curated range of handcrafted 20 mm straps in various leathers and finishes. For a fully bespoke result, Casati Milano atelier produces made-to-measure straps with personally selected hides and hardware, including a deployant clasp option in polished or brushed steel.

How long does a leather strap last on a Breitling Premier A45340211G1A1?

Longevity depends on material quality and daily use. A vegetable-tanned calf leather strap typically lasts 18 to 36 months with regular wear. A top-grade alligator strap, owing to the dense fibrous structure of the hide, can exceed 3 to 5 years while developing a distinctive patina. Prolonged exposure to perspiration, water and UV light accelerates deterioration; rotating between straps and storing them away from heat sources is strongly recommended.