The Mingzhu DG2813 V4 Power Reserve is a variant of the standard DG2813 V4 calibre featuring an additional power reserve indicator complication. Based on the same Miyota 8215 architecture as the base DG2813, it operates at 21,600 bph with 22 jewels and approximately 36 hours power reserve. The power reserve indicator — displayed on a dedicated sub-dial — shows the remaining mainspring tension, allowing the wearer to see at a glance whether the movement requires winding. It is used in replica references where the dial design includes a visible power reserve display as a functional or decorative complication.
The V4 designation reflects replica manufacturer modifications to fitment tolerances and rotor stability, consistent with the standard DG2813 V4. The power reserve variant shares the same base calibre architecture, jewel count, and beat rate — the PR indicator is an additional complication built on top of the standard specification rather than a separate movement family.
In Practice
- The DG2813 V4 Power Reserve operates at 21,600 bph — the same beat rate as the standard V4. The power reserve indicator adds a functional display showing remaining mainspring tension, typically presented as a sector sub-dial on the dial.
- Power reserve is approximately 36 hours from full wind — the same as the standard DG2813 V4. The PR indicator allows the wearer to monitor reserve level directly rather than estimating from when the watch was last worn.
- The power reserve indicator is a functional complication — it reflects actual mainspring tension as the movement runs down. As with all complications in this production tier, accuracy of the indicator display depends on assembly and regulation quality at the replica manufacturer level.
- This variant is used specifically in replica references where the dial carries a visible power reserve sub-dial. In references without a PR display on the dial, the standard DG2813 V4 is the appropriate movement — the PR variant is reference-specific.
- As with the standard DG2813 V4, this is a closed caseback movement in practice. For references with exhibition casebacks, a clone movement is the appropriate choice.
Related Terms
Mingzhu DG2813 V4 · Mingzhu Movement · Power Reserve · QC (Quality Check) · Super Clone
Read Next
For a full overview of movements used in replica watches — including how the DG2813 family compares to Miyota and other calibres — read: Replica Watch Movements Explained