Technical Archive

Breitling
Galactic W7433012.A779.376A— lug 18mm

Breitling Galactic W7433012.A779.376A: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Galactic 36 Stainless Steel / SleekT / Pearl / Bracelet

Artisanal Note

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

Technical Specifications

Breitling W7433012.A779.376A
Lug Width
18 mm

The essential strap measurement.

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Reference

W7433012.A779.376A

Movement

Breitling caliber Caliber B74 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Breitling Galactic 36 mm (ref. W7433012.A779.376A) features a stainless steel case with tungsten inserts, measuring 36.00 mm in diameter. It is powered by the Breitling B74 automatic chronometer movement, certified by the Official Swiss Chronometer Testing Institute (COSC), with hour, minute, second, and date display. The mother-of-pearl dial exhibits chromatic shifts from ice white to antique pink depending on light incidence. The lug width is 18 mm and is not interchangeable with the 20 mm size used in Navitimer or Superocean models. The screw-down crown provides adequate water resistance for intensive daily use.

FAQ

What is the lug width of the Breitling Galactic W7433012.A779.376A?

The Breitling Galactic W7433012.A779.376A features an 18 mm lug width. This measurement is specific to the Galactic 36 and differs from the 20 mm adopted on other Breitling references such as the Navitimer or the Superocean. Before purchasing an aftermarket strap, it is advisable to verify the lug width using a digital calliper placed inside the lugs, against the case.

What is the best strap for the Breitling Galactic W7433012.A779.376A with a mother-of-pearl dial?

For the Galactic 36 with a mother-of-pearl dial, straps in vegetable-tanned alligator or smooth calf leather offer the most coherent aesthetic pairing. Alligator with carrée scales complements the iridescent texture of the dial without overwhelming it. Slate grey or midnight blue leather straps are particularly effective colour choices. For sportier use, a vulcanised rubber strap is the most practical option.

How do you change the strap on the Breitling Galactic W7433012.A779.376A?

The strap on the Breitling Galactic W7433012.A779.376A is replaced via standard 18 mm spring bars. A dedicated spring bar tool with a fine tip is sufficient to compress the bars and remove the original strap. Care should be taken to avoid scratching the stainless steel and tungsten lugs. If in doubt, it is preferable to entrust the operation to a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Galactic W7433012.A779.376A?

Yes, the Breitling Galactic W7433012.A779.376A accepts any aftermarket strap with an 18 mm lug width and standard spring bars. milanostraps.it offers a selection of handcrafted compatible straps — in alligator, calf leather, shell cordovan, NATO, and rubber — produced by the Casati Milano atelier. Each strap is made to ensure a precise fit on the 18 mm lugs of this model.

How long does a leather strap last on a Breitling Galactic W7433012.A779.376A?

The lifespan of a leather strap depends on the material, tanning process, and daily use. A high-quality vegetable-tanned alligator strap, with periodic conditioning (leather cream every 2–3 months), typically lasts between 3 and 5 years with regular wear. Smooth calf leather develops a patina over time but is more susceptible to moisture. Shell cordovan, due to its dense fibre structure, is the most durable among classic leathers. The Casati Milano guarantee covers manufacturing defects for 18 months.