Technical Archive

Breitling
Navitimer U17395211A1U1— lug 18mm

Breitling Navitimer U17395211A1U1: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Navitimer 1 35 Automatic Stainless Steel / Red Gold / MOP / Bracelet

Artisanal Note

"This model requires a precise 18mm lug width to preserve the original sartorial balance."

Technical Specifications

Breitling U17395211A1U1
Lug Width
18 mm

The essential strap measurement.

Browse 18mm straps →
Reference

U17395211A1U1

Movement

Breitling caliber Caliber 17 ND Hours, Minutes, Seconds

The Heritage

The Breitling Navitimer 1 35 Automatic (ref. U17395211A1U1) is a 35mm stainless steel chronograph featuring the Breitling Caliber 17 ND automatic movement. This model revives the original proportions of the 1952 design, with a rotating bezel featuring logarithmic scale for aeronautical calculations. The 18mm lug width accommodates compatible straps and maintains the refined balance of the watch's multifunctional dial with three counters and integrated tachometric scale.

FAQ

What is the lug width of the Breitling Navitimer U17395211A1U1?

The Breitling Navitimer U17395211A1U1 features a 35mm case with a lug width of 18mm. This measurement is essential when selecting a replacement strap: any standard 18mm strap with straight ends will be physically compatible with this reference.

What is the best strap for the Breitling Navitimer U17395211A1U1?

For the Navitimer U17395211A1U1 with its 35mm case, a matte alligator strap or a vegetable-tanned calfskin strap are the most coherent choices aesthetically. Calfskin develops a natural patina over time, while alligator offers superior longevity and a formal bearing. For daily or active use, a vulcanised rubber strap is a sound functional alternative.

How do you change the strap on a Breitling Navitimer U17395211A1U1?

Strap replacement requires a fine-tipped spring bar tool. Insert the tip into the dedicated hole or between the lug and the strap end, compress the spring bar and slide the strap free. The operation is fully reversible and does not require Breitling service centre intervention. It is advisable to work on a soft surface to avoid scratching the case.

Are there aftermarket straps compatible with the Breitling Navitimer U17395211A1U1?

Yes. Any 18mm strap with straight ends is physically compatible with the Navitimer U17395211A1U1. Milano Straps offers a curated selection of handcrafted straps in various materials — alligator, calfskin, rubber and NATO — designed to complement the proportions of the 35mm case without disrupting its visual balance.

How long does a leather strap last on a Breitling Navitimer U17395211A1U1?

The lifespan of a leather strap depends on the quality of the hide, frequency of wear and exposure to perspiration and moisture. A quality vegetable-tanned calfskin strap typically lasts between two and four years with daily use. Alligator, owing to the density of its scale structure, offers greater resistance. Casati Milano straps carry an 18-month warranty against manufacturing defects.