Breitling · Galactic

Strap for Galactic Chronograph II Stainless Steel / Blue

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

Lug width18 mm
Case diameter44 mm
ReferenceA1336410/C645/731P
FamilyGalactic
MovementBreitling caliber 13 hours, minutes, small seconds | date | Chronograph
Year2011 - 2012
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 A1336410/C645/731P

Selected for the 18 mm lug width

All 18 mm straps →

The Galactic A1336410/C645/731P, seen from the bench

The Galactic represents Breitling's chronograph offering with Caliber 13 automatic movement. The timepiece features hours, minutes, small seconds, date and chronograph functions. The reference A1336410/C645/731P is available with a Professional strap.

Frequently asked questions

What is the lug width of the Breitling Galactic A1336410/C645/731P?

The Breitling Galactic A1336410/C645/731P has a lug width of 18mm. This measurement is taken using a millimetre calliper positioned between the inner walls of the two case lugs. Respecting this measurement is essential to ensure any replacement strap fits correctly without lateral play.

What is the best strap for the Breitling Galactic A1336410/C645/731P?

For the Breitling Galactic A1336410/C645/731P, an alligator strap in black or a vegetable-tanned calf leather strap in tobacco tones are the most coherent choices given the watch's technical-elegant character. For daily or sporting use, a nylon NATO or vulcanised rubber strap offers functionality without compromising aesthetics. A brushed steel deployant clasp is recommended to maximise wrist stability.

How do you change the strap on a Breitling Galactic A1336410/C645/731P?

To replace the strap on the Breitling Galactic A1336410/C645/731P, a dedicated springbar tool or fine-tipped lever is required to remove the springbars connecting the strap to the case lugs. It is advisable to work on a soft surface to protect the watch's finishing and to ensure the replacement springbars have the correct diameter (typically 1.5mm) for 18mm lugs.

Are there aftermarket straps compatible with the Breitling Galactic A1336410/C645/731P?

Yes, the aftermarket offers a wide selection of straps compatible with the Breitling Galactic A1336410/C645/731P, provided they conform to the 18mm lug width. Milano Straps offers handcrafted leather, NATO and technical-material straps produced to high quality standards, available both online and bespoke at the Casati Milano atelier.

How long does a leather strap last on a Breitling Galactic A1336410/C645/731P?

The lifespan of a leather strap depends on material quality and maintenance. A high-quality alligator or vegetable-tanned calf leather strap worn daily can last between two and four years while retaining a presentable appearance. Avoiding prolonged contact with water and perspiration, drying it after use, and occasionally applying a leather conditioner will significantly extend the strap's service life.

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