The Mingzhu DG2813 is an automatic calibre produced by Mingzhu (PTS Resources Limited), a Chinese movement manufacturer. Based on the Miyota 8215 architecture, it is one of the most widely used movements in mid-tier replica watch production — offering a self-winding mechanism and date complication in a compact 26mm diameter automatic calibre. The V4 designation refers to the fourth-generation modification of this calibre by replica manufacturers: adjustments made to rotor tolerances, case fitment, and production consistency relative to earlier versions of the same base calibre.
The base DG2813 calibre operates at 21,600 bph with approximately 36 hours power reserve and 22 jewels. The V4 designation reflects replica manufacturer modifications to fitment and production tolerances — the core calibre architecture remains consistent with the base specification. A power reserve variant — the DG2813 V4 Power Reserve — adds a power reserve indicator complication to the same base architecture, used in references where the dial carries a visible power reserve display.
In Practice
- The DG2813 V4 operates at 21,600 bph — producing a sweeping second hand motion characteristic of automatic movements. Based on the Miyota 8215 architecture, it shares the same fundamental mechanical layout as one of the most proven automatic calibres in the mid-tier watch segment.
- The base calibre carries 22 jewels and an accuracy rating of +/- 60 seconds per day — standard for automatic movements in this production tier. Actual daily performance depends on regulation quality at the point of assembly by the replica manufacturer.
- Power reserve is approximately 36 hours from full wind. A watch left unworn overnight will typically retain enough reserve to resume accurate timekeeping; a watch left unworn for a full weekend will require manual winding via the crown — approximately 20 to 30 turns — before wearing.
- The V4 designation reflects replica manufacturer modifications to the base DG2813 calibre — not a Mingzhu factory revision. These modifications address case fitment tolerances and rotor stability relative to V2 and V3 versions of the same calibre.
- The DG2813 V4 is a closed caseback movement in practice — its architecture does not replicate any specific Swiss calibre visually. For references with exhibition casebacks where movement appearance matters, a clone movement is the appropriate choice.
Related Terms
Miyota Movement · Mingzhu DG3804 V4 · Mingzhu DG3836 V3 · QC (Quality Check) · Super Clone
Read Next
For a full overview of movements used in replica watches — including how the DG2813 compares to Miyota and other calibres — read: Replica Watch Movements Explained