Hublot Big Bang Gold (ref. 301.PX.1180.RX) Swiss

One of the youngest (and the most daring) Swiss watch makers has introduced yet another iteration of its top-selling Big Bang collection of sporty chronographs. The new Hublot Big Bang Gold (ref. 301.PX.1180.RX) automatic wristwatch comes in a generous 44.5 mm case made of brushed red gold.

Like the Big Bang Evolution model that was revealed last summer, the new Big Bang gold is powered by their HUB 4100 automatic chronograph movement.

Built of 252 parts and sporting a tungsten carbide rotor with black PVD coating, the caliber is reliable, accurate and (last, but not least) is pleasant to look at, although it features a very understated (something you don’t really expect from Hublot) decor with sandblasted and rhodium-plated main plate, micro-blasted, bevelled and polished bridges and partly skeletonized winding rotor.

Thanks to its reinforced mainspring, the movement stores enough energy to run for at least 42 hours after you take it off your wrist. It is perfectly visible through the watch’s transparent case back.

Hublot Big Bang Gold chronograph watch

Although Hublot, like many other ultra-luxury brands that are forced to use third-party mechanisms to power their particularly expensive wristwatches, is fairly secretive when it comes to sources of their calibers, I am fairly certain that the HUB 4100 is based on the well-known (some may even call it ‘legendary’ if a bit dated) ETA Valjoux 7750 chronograph ebauche.

As you can see on the picture below that compares the HUB4100 with a version of ETA 7750 modified by CX Swiss Military (another Swiss-based brand that sells their watches at 1/10th the price of a regular Hublot chonograph,) only the aforementioned oscillating weight is different, while the rest of the mechanisms -including a “7750” stamp on the mainplate- are the same.

Hublot Caliber HUB 4100 vs. ETA Valjoux 7750

I can’t say that the choice of base movement makes this expensive chronograph any less interesting: just keep in mind that the lion’s share of pricing here is formed by the material of the case and the logo on the dial: like most of its siblings, the Big Bang Gold is more of an extremely expensive accessory rather than a piece of High Horology. On the other hand, Hublot quite openly admits that their timekeepers are mostly designed for those who values exterior over the mechanical guts that make the piece work.

The watch sports the Big Bang’s signature design with its layer cake 18-carat rose gold case, the chronograph pushpieces, as well as the setting crown featuring black rubber inserts. The fixed bezel and the black rubber strap are secured with their trademark H-shaped screws.

As usual, the watch features a legible, easy to grasp with a single glance dial layout with all its hands (except, perhaps, for the central seconds hand) featuring generous layers of white Superluminova that looks contrast on the back background of the dial during the day and glows brightly at night.

Hublot Big Bang Gold (ref. 301.PX.1180.RX, sapphire back)

The trapezoid-shaped date window, which is placed between 4 and 5 o’clock, is also easy to read, although I would prefer it to be somewhat bigger.

Hublot does not plan to limit the watch’s production. However, at a suggested price of €20,200 the limit will be reached quite naturally.

WWR Verdict

Originality 4/5
Build Quality: 5/5
Usability: 4.5/5
Overall Legibility: 4/5
Nighttime Legibility: 4/5
Value for Money: 4/5

Overall Rating: 4/5

See also: Hublot Bode Bang limited edition chronograph (Ref. 301.CI.2010.RX.BDM09)

Photos: Hublot

Hublot Big Bang Gold (ref. 301.PX.1180.RX) self-winding watch specification

Price range: €20,200 (MSRP)
Movement: Caliber HUB 4100, automatic, 252 parts, 27 jewels, Swiss Made
Functions: Hours, minutes, small seconds, date, chronograph
Power reserve: 42 hours
Case material: 5N Red gold alloy
Case shape: Round
Case size: 44.50 mm
Case height: 14.50 mm
Dial: Black
Hands: Red gold
Water resistance: 100 meters
Strap: Black rubber with red gold folding clasp
Crystal: Sapphire, antireflective coating on both sides
Back: Sapphire

Previous post:
Luminox Essential Gear Air Search And Rescue (SAR)

Next post:
Luminox Essential Gear Land military quartz watch


  1. Hublot sticks to what they know best here. A great mix of luxurious materials against the black base. Love this piece, as I do many of their Bang series.

Comments are closed.