Offering an overall appearance that could best be described as a Cartier Santos combined with one of the robots from Michael Bay’s Transformers films, the Hublot Square Bang collection takes the fundamental DNA of the brand’s signature Big Bang timepiece and expresses it within the context of a square-shaped profile. Since debuting in 2022, Hublot’s Square Bang series has expanded to include models in a wide variety of different materials. However, up until now, every single one of them has been a chronograph. Joining the catalog for 2025 is the UK Swiss made replica Hublot Square Bang Tourbillon 4-Day Power Reserve watches, which features a 3D Carbon Fiber case and a new movement with skeletonized square-shaped bridges that echo the collection’s defining silhouette.
Despite having square-shaped dials and crystals, previous best online copy Hublot Square Bang watches all featured the brand’s standard UNICO automatic chronograph movement, and the new Hublot Square Bang Tourbillon 4-Day Power Reserve (ref. 805.QD.0170.RX) is the first watch from the collection that has been entirely conceived to be a square-shaped timepiece. If you look at the caseback shot from our review of the original quintet of Square Bang watches, it’s immediately apparent that they consist of traditional circular movements fitted inside square-shaped cases. Conversely, the new manual-wind Manufacture Caliber MHUB6023 movement that powers the Square Bang Tourbillon 4-Day Power Reserve is entirely based upon right angles, and along with having a square-shaped outer profile, its skeletonized design consists entirely of intersecting square bridges to create a highly cohesive aesthetic on both sides of the watch.
Running at a frequency of 21,600vph (3 Hz), the 25-jewel Hublot Cal. MHUB6023 offers a lengthy four-day power reserve (96 hours), thanks to a large mainspring that sits visibly inside a skeletonized barrel mounted below the square-shaped bridge at the 12 o’clock location. Just like many of high quality fake Hublot watches, the Square Bang Tourbillon 4-Day Power Reserve features a transparent sapphire dial to showcase the open-worked construction of its internals, and the use of white luminous material on its hands and hour markers helps improve legibility against the black-finished bridges of the movement. The architecture of the manual-wind Cal. MHUB6023 also displays a well-considered layout, with its tourbillon and silicon escapement sitting at 6 o’clock to add visual balance against the mainspring barrel on the upper half of the dial, and its power reserve indicator at 9 o’clock creating symmetry against the winding/setting mechanism at the 3 o’clock location.
Along with being the first non-chronograph Square Bang model and the first to be equipped with a tourbillon, the new UK cheap super clone Hublot Square Bang Tourbillon 4-Day Power Reserve watches are also the first from the series to feature a case made from 3D Carbon Fiber. Unlike traditional woven carbon fiber, which is composed of fibers running in two directions, Hublot’s 3D Carbon Fiber is woven on three different planes, and this creates a three-dimensional grid-like structure throughout the material revealed during the machining process. When rendered in bright colors like on the brand’s MP-09 Tourbillon Bi-Axis Tourbillon watches, 3D Carbon Fiber can have a borderline whimsical appearance, although the tone-on-tone black variety used for the Square Bang Tourbillon 4-Day Power Reserve simply provides its components with a distinct square-shaped texture that further leans into the silhouette of the model.
While the case of the 1:1 wholesale replica Hublot Square Bang Tourbillon 4-Day Power Reserve watches offer the same 42mm diameter as other models from the collection, it is slightly thinner with an overall height of 12.3mm. However, the new tourbillon-equipped Square Bang also offers the least water resistance among the series with a depth rating of 30 meters, versus the 100 meters offered by the standard metal/ceramic models and the 50 meters provided by the full-sapphire version of the Square Bang. Held together with titanium H-shaped screws and furnished with clear sapphire crystals fitted on either side of its structure, the case of the Square Bang Tourbillon 4-Day Power Reserve otherwise offers much of the same overall appearance as other models from the Square Bang collection, with the most notable deviation from its siblings being the lack of pushers flanking its winding crown on the 3 o’clock side of its case.
Spiritually connected to the brand’s signature Big Bang collection, Hublot’s Square Bang models also feature the brand’s One-Click system, which allows owners to quickly disconnect the strap by pressing the two trapezoid-shaped buttons on the top surfaces of the lugs. To further complement the theme of right angles, the Hublot Square Bang Tourbillon 4-Day Power Reserve is paired with a black textured rubber strap that features a grid motif embossed into its outer surface, and completing the strap is a deployant clasp made from black-finished titanium and ceramic. All of the existing rubber straps for Hublot’s Square Bang series also feature this same grid-texture pattern, and since this latest tourbillon-equipped model has the same 42mm diameter and One-Click system as other high end replica watches from the collection, I’d imagine that any straps for the Square Bang chronographs will also be compatible with its case.
I’ve always been a fan of the concept behind Hublot’s Square Bang series, as I personally enjoy seeing the core identity of the Big Bang adapted to different case profiles. That said, the use of a circular movement inside a square case with an open-worked display always created a certain amount of visual discontinuity, and as the first model from the collection that has been entirely designed from the ground up to be a square watch, the new UK paypal fake Hublot Square Bang Tourbillon 4-Day Power Reserve watches benefits from a noticeably more cohesive and complete overall appearance. A similar evolution previously occurred within Hublot’s Spirit of Big Bang collection, and while the inaugural models simply consisted of UNICO chronograph movements inside tonneau-shaped cases, later iterations featured MECA-10 and tourbillon-equipped calibers that were specifically engineered to correspond with their distinct profiles.
With the right angles of its movement and 3D Carbon Fiber case perfectly complementing its square-shaped silhouette, the shop perfect replica Hublot Square Bang Tourbillon 4-Day Power Reserve (ref. 805.QD.0170.RX) watches are easily the most visually cohesive model from the Square Bang series, although it is also the most expensive with an official retail price of $105,000 USD. Additionally, rather than being a limited edition, the Square Bang Tourbillon 4-Day Power Reserve will be joining the collection as a standard-production model, and in the same way that the brand’s tonneau-shaped Spirit of Big Bang series now includes a wide variety of designs, I wouldn’t be surprised if the Square Bang lineup eventually ended up following a similar trajectory, with different movements, complications, sizes, and collaborations appearing at some point in the future.