Breitling · Galactic

Strap for Galactic 36 Automatic Stainless Steel / Diamond / Onyx Black / Sahara

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter36 mm
ReferenceA3733053/BE77/217X/A16BA.1
FamilyGalactic
MovementBreitling caliber 37 hours, minutes, small seconds | date
Year2016
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 Galactic A3733053/BE77/217X/A16BA.1

Selected for the 18 mm lug width

All 18 mm straps →

The Galactic A3733053/BE77/217X/A16BA.1, seen from the bench

The Breitling Galactic 36 (ref. A3733053/BE77/217X/A16BA.1) is a technical instrument watch with a 36mm stainless steel case, satin and polished finishing, housing the automatic Breitling caliber 37 movement. The dial follows aeronautical logic with hours, minutes, small seconds at 6, and date window. The 18mm lug width requires careful strap selection; tapering from 18mm to 16mm at the buckle is recommended to maintain visual balance on this compact, purposeful timepiece designed for daily portability without compromise.

Frequently asked questions

What is the lug width of the Breitling Galactic A3733053/BE77/217X/A16BA.1?

The lug width of the Breitling Galactic A3733053/BE77/217X/A16BA.1 is 18mm. This measurement is taken with a digital calliper positioned between the two lugs at the strap attachment point, parallel to the vertical axis. It refers to the internal distance between the lugs, not the external case diameter, which is 36mm.

What is the best strap for the Breitling Galactic 36mm A3733053/BE77/217X/A16BA.1?

For the Breitling Galactic 36mm, the most balanced choice is a smooth vegetable-tanned calf leather strap with an 18/16mm taper: the fine grain complements the satin-finished steel without overwhelming the proportions. For formal contexts, Mississippiensis alligator with square scales elevates the aesthetic register. Shell cordovan is recommended for those seeking durability and a dense, compact surface over the long term.

How do you change the strap on the Breitling Galactic A3733053/BE77/217X/A16BA.1?

To replace the strap on the Breitling Galactic A3733053/BE77/217X/A16BA.1, you will need a springbar tool or a dedicated fork-tip instrument. The 18mm springbars are removed by compressing their ends inside the lugs using the tool inserted into the lug hole. It is advisable to work on a soft mat to avoid scratching the satin-finished steel case. Fitting the new strap follows the reverse procedure.

Are there aftermarket straps compatible with the Breitling Galactic 36 A3733053/BE77/217X/A16BA.1?

Yes, any strap with an 18mm attachment width is technically compatible with the Breitling Galactic A3733053/BE77/217X/A16BA.1, provided the springbars have the correct diameter for this model's lugs. Milano Straps offers a curated selection of handcrafted 18mm straps in various materials — leather, alligator, cordovan, NATO, and rubber — designed to respect the proportions of a 36mm case.

How long does a leather strap last on a Breitling Galactic?

The lifespan of a leather strap depends on the material, care routine and frequency of wear. A quality vegetable-tanned calf leather strap, with daily use and proper maintenance (nourishing cream every 2–3 months, drying away from heat sources), typically lasts 2–4 years. Shell cordovan, owing to the density of the equine hide fibres, can exceed 5 years while retaining a clean edge. Alligator, when protected from moisture, offers longevity comparable to cordovan. Casati Milano straps carry an 18-month warranty against manufacturing defects.

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