Before any timepiece leaves the SwissClone horological workshop, our technicians perform a comprehensive 48-Hour Quality Control (QC) Inspection—sending you high-resolution macro photographs, a personalized functionality video, and a live Weishi No. 1900 Timegrapher acoustic readout via WhatsApp or email. Whether you are a seasoned `r/RepTimeQC` veteran or ordering your first 1:1 super clone, this guide teaches you how to read every number on the screen like a master watchmaker.
- 1. Rate (Seconds per Day, s/d): Ideal range is -4 s/d to +6 s/d (COSC chronometer territory). Anything within ±8 s/d is healthy and stable.
- 2. Amplitude (Degrees °): Measures balance wheel swing arc. Ideal is 270° to 310° for standard calibres (2824, 3135, DD4130) and 250° to 285° for 72-hour low-lift-angle calibres (VS3235, DD3285).
- 3. Beat Error (Milliseconds, ms): Measures symmetry between the ‘tick’ and ‘tock’ impulse. Ideal is 0.0 ms to 0.3 ms (anything under 0.6 ms is acceptable).
- 4. Beat Rate (vph / bph): 28,800 vph (Rolex, AP 15500/26240, Patek 324), 25,200 vph (Omega Co-Axial 8800/8900), or 21,600 vph (Patek 5712 Cal.240, AP 15202).
1. Decoding the Three Primary Timegrapher Metrics
A Timegrapher is an acoustic stethoscope for mechanical watches. By clamping the watch case against a piezoelectric microphone, it listens to the 6 to 8 microscopic ticks per second of the pallet fork striking the escape wheel teeth and plots a diagonal trace line across the LCD screen.
| Timegrapher Metric | Championship / COSC Spec | Healthy Green-Light (GL) Range | When Our Watchmakers Re-Regulate (RL) |
|---|---|---|---|
| Rate (s/d) | -2 s/d to +4 s/d | -6 s/d to +8 s/d (Flat Trace) | Beyond ±12 s/d or Wavy Trace |
| Amplitude (Standard Calibres) | 280° – 305° (at 52° Lift) | 265° – 315° | Below 235° or Above 330° (Knocking) |
| Amplitude (VS3235 / DD3285) | 255° – 285° (53° Escapement) | 245° – 295° | Below 225° Fully Wound |
| Beat Error (ms) | 0.0 ms – 0.2 ms | 0.0 ms – 0.5 ms | 0.7 ms or Higher (Double Line) |
2. The 5 Visual Macro Checkpoints in Your 48-Hour QC Album
Alongside the electronic Timegrapher test, our QC inspectors verify five physical aesthetics on every watch—whether you ordered a VSF Rolex Submariner 126610LV Starbucks, a Clean Factory Rolex Daytona 116500LN, or an AP Royal Oak 15500ST Blue Dial:
- Index & Rehaut Alignment: Verifying that the 12, 3, 6, and 9 o’clock applied batons sit straight and that the inner rehaut coronet aligns at 12 o’clock.
- Cyclops & Date Wheel Centering: Checking double-digit dates (10, 15, 23, 28) inside the 2.5x Cyclops window or AP/Patek aperture.
- Solid End Link (SEL) Flushness: Inspecting the four corners where the first bracelet link meets the case lugs for zero daylight gaps.
- Hand Stack & Bezel Pip Alignment: Confirming the 12 o’clock luminous bezel pearl aligns dead-center with the 12 o’clock marker.
- Vacuum Water-Resistance Seal: Pressure-testing the caseback and screw-down crown gaskets.
- ⌚ Rolex Submariner 41mm 126610LV Starbucks VSF — Regulated to ±3 s/d with Full Video QC
- ⌚ Rolex Daytona 116500LN Clean Factory DD4130 — Chronograph Start/Stop/Reset Video Verified
- ⌚ Patek Philippe Nautilus 5711/1A Blue Dial — 8.3mm Caliper & Timegrapher Inspected
- ⌚ AP Royal Oak 15500ST 41mm Blue Dial — Bezel Screw & Tapisserie Macro Checked
Collector FAQ & Pre-Shipment QC Answers
What happens if I spot something I don’t like in my 48-hour QC photos?
You have 100% approval authority before shipment! If any detail—such as date centering or index alignment—does not meet your expectations, simply reply to your QC message and our watchmakers will immediately regulate the watch or swap it for a fresh piece from the factory batch at zero extra cost.
How is my QC video delivered?
Within 24 to 48 hours of placing your order, our concierge sends a private HD video link and macro photo gallery directly to your WhatsApp number and registered email address.
