The HUB1400 Inspired Tourbillon V3 is a Chinese-made automatic skeleton calibre engineered to replicate the visual architecture of the Hublot HUB1400 — the movement used in the genuine Big Bang King Power Reserve Tourbillon reference. It is not a genuine Hublot product. The calibre carries a visible tourbillon cage at the lower dial aperture, a power reserve indicator, and a fully skeletonized architecture that exposes the mechanical components from the dial side — replicating the open layout of the genuine reference. The V3 designation refers to the third-generation modification of this calibre by replica manufacturers for Big Bang King case compatibility.
The tourbillon in the HUB1400 Inspired Tourbillon V3 is a functional rotating cage — it oscillates and rotates visibly through the skeleton dial aperture during normal operation. However, it is important to understand the distinction: a genuine tourbillon rotates the entire escapement assembly to counteract the effects of gravity on timekeeping precision — a mechanism requiring exceptional manufacturing tolerances. In this calibre, the rotating element provides the visual signature of a tourbillon display, but the gravity-compensation function associated with genuine haute horlogerie tourbillons should not be expected at this production tier. The power reserve indicator is functional and reflects the actual mainspring state in real time.
In Practice
- The tourbillon cage rotates visibly through the lower dial aperture during normal operation — it is driven by the movement and genuinely in motion, not a static decoration. The power reserve indicator advances and retreats in real time as the mainspring winds and depletes through wear and non-wear periods.
- The fully skeletonized architecture exposes the movement from the dial side — bridges, gear train, and tourbillon cage are all visible through the open dial without requiring an exhibition caseback. This is consistent with the genuine Big Bang King Power Reserve Tourbillon layout, where the movement architecture is the primary visual element of the dial design.
- As an automatic calibre, the movement winds through wrist motion during daily wear. The power reserve indicator provides a functional readout of remaining running time — allowing the wearer to assess whether manual winding via the crown is required before periods of non-wear.
- The V3 designation reflects the third-generation modification of this calibre by replica manufacturers — case fitment, crown placement, and dial aperture alignment adjustments specific to the Big Bang King 44mm case geometry. Each generation of modification has refined the compatibility between the calibre and the reference case.
- Detailed technical specifications — including diameter, jewel count, beat rate, and power reserve duration — are not publicly documented for this calibre. It is produced specifically for replica reference use rather than distributed as a standalone movement with published specification sheets.
Related Terms
Sea-Gull ST2500 V2 · Hangzhou 7500 Series (7530) · Mingzhu DG3836 V3 · Super Clone · Sapphire Crystal
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For a full overview of movements used in replica watches — including how the HUB1400 Inspired Tourbillon compares to other calibres — read: Replica Watch Movements Explained