Breitling · Chronospace

Strap for Chronospace Evo B60 Mariner Blue / Calf

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter43 mm
ReferenceEB601010.C945.437X
FamilyChronospace
MovementBreitling caliber Caliber B60 Foudroyante Seconds, Minutes, Small Seconds | Date | Chronograph, Flyback, Rattrapante | Chronometer
CaseTitanium

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Chronospace EB601010.C945.437X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronospace EB601010.C945.437X, seen from the bench

The Chronospace is a digital-analog chronograph by Breitling equipped with the B60 caliber, featuring flyback and split-seconds chronograph functions with chronometer certification. The movement integrates a foudroyante seconds hand, small seconds, date indication, and advanced chronograph complications. The watch has 22mm lugs and combines analog and digital displays for the time indications.

Frequently asked questions

What is the lug width of the Breitling Chronospace EB601010.C945.437X?

The Breitling Chronospace EB601010.C945.437X has a lug width of 22mm. This measurement can be confirmed using a digital calliper placed between the case lugs on the titanium case. All aftermarket straps with a 22mm attachment — including NATO, leather, and rubber — are fully compatible.

What is the best strap for the Breitling Chronospace EB601010.C945.437X?

For aviation or technical use, a nylon or cordura NATO strap is the most coherent choice. For formal settings, a vegetable-tanned calfskin or shell cordovan strap provides understated elegance. Vulcanised rubber is ideal for humid or active environments. All options must feature a 22mm attachment width.

How do I change the strap on the Breitling Chronospace EB601010.C945.437X?

The strap is removed using a spring bar tool or a thin-tipped lever, applying gentle pressure to the spring bar inside the lug. It is advisable to work on a soft mat to protect the titanium case from scratches. No specialist tools are required, but care should be taken not to stress or deform the lugs during the process.

Are there aftermarket straps compatible with the Breitling Chronospace EB601010.C945.437X?

Yes. Any strap with a 22mm attachment width and a 20mm buckle is compatible. Milanostraps.it offers a curated selection of handcrafted leather, NATO, rubber, and cordovan straps specifically suited to 22mm lugs. Each strap is produced using certified materials and finished to a bespoke standard.

How long does a leather strap last on the Breitling Chronospace EB601010.C945.437X?

A quality vegetable-tanned leather strap, properly maintained, will last between 2 and 5 years with daily use. Shell cordovan often exceeds 5 years, developing a distinctive patina over time. Prolonged exposure to perspiration, water, or UV light accelerates wear. It is recommended to rotate between at least two straps and to apply leather conditioner periodically.

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.

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