The Mingzhu DG5866PB is an automatic calibre produced by Mingzhu, a Chinese movement manufacturer. It is one of the more complication-rich Mingzhu calibres — carrying a functional moonphase display, date complication, power reserve indicator, and a sub-seconds hand within a 26mm diameter, 5.87mm thick automatic architecture. The V2 designation refers to the second-generation modification of this calibre by replica manufacturers specifically for use in Nautilus 5712-style references, where all four complications are visible on the dial simultaneously.
Unlike some Mingzhu calibres used in references where complications are partially cosmetic, the DG5866PB V2 delivers functional output across all displayed complications. The moonphase display tracks the lunar cycle and advances accordingly; the power reserve indicator reflects the actual state of the mainspring; the date advances automatically at midnight; and the sub-seconds hand runs continuously. All four complications are driven by the movement — none are decorative.
In Practice
- The moonphase complication tracks the lunar cycle and must be set correctly when the watch is first worn or after extended non-wear. Once set, it advances automatically — but moonphase mechanisms in this production tier require periodic manual correction to maintain accuracy over time, as the lunar cycle does not divide evenly into standard mechanical increments.
- The power reserve indicator displays the remaining mainspring energy in real time. As the watch winds down through wear or manual winding, the indicator advances toward the reserve boundary — providing a functional readout of how much running time remains before the movement stops.
- The date complication advances automatically at midnight during normal daily wear. After extended non-wear, both the date and moonphase will require manual resetting via the crown before the watch reflects current calendar information accurately.
- The sub-seconds hand runs continuously at the 6 o'clock sub-dial position — consistent with the Nautilus 5712 reference layout. It is driven directly by the movement's escapement and provides a visual confirmation that the movement is running.
- The V2 designation reflects replica manufacturer modifications to the base DG5866PB calibre for Nautilus 5712 reference compatibility — dial fitment, hand sizing, and case geometry adjustments specific to the Nautilus case. The DG5866PB V2 is a closed caseback movement with no visual resemblance to the genuine Patek Philippe calibre.
Related Terms
Mingzhu DG2813 V4 · Mingzhu DG3804 V4 · Mingzhu DG3836 V3 · Mingzhu DG5833A V2 · Super Clone
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For a full overview of movements used in replica watches — including how the DG5866PB compares to other Mingzhu calibres — read: Replica Watch Movements Explained