📱 Wholesale inquiry? Get a live quote on WhatsApp: +86 135 4431 4495 sales@jojowatchwholesale.com Get Quote
Home / Guides / Bulk QC

Bulk Watch QC: AQL Sampling and the Professional Receiving Process

How professionals QC wholesale watch orders: AQL sampling statistics, defect tiers, the document-first receiving sequence, the three-way match, and claim windows that decide disputes.

Bulk QC Inspection Process

Principle 1

Sample, don't census

Professional bulk QC uses AQL sampling (ISO 2859 / ANSI Z1.4) — a statistically-derived sample, not 100% inspection. 50 units → check 8. 500 → 50. 1,000 → 80. Fresh-eyed sampling beats fatigued census.

Principle 2

Tier the defects

Critical (fake/wrong module — zero tolerance), major (doesn't work — a few tolerated at AQL 2.5), minor (cosmetic — more tolerated). Knowing which class a defect belongs to decides pass/reject cleanly.

Principle 3

Documents before units

The PI (proforma invoice) defines the order line by line; the packing list defines the cartons. Reconcile documents first, units second — most disputes die at the document stage.

Principle 4

Claim windows are short

Suppliers and carriers run 7-14 day claim windows from delivery. The receiving check happens on arrival day. Claims are won at the dock, not at the desk.

The receiving sequence (per shipment)

1. Document the outside. Photos of sealed cartons and labels before opening — this is your transit-claim evidence if the outer box tells a story.

2. Reconcile the paperwork. Master packing list vs PI, line by line: model codes, quantities, carton counts. Any mismatch is resolved before units are opened.

3. Sample across cartons, not within one. Pull the AQL sample spread across all cartons — a batch problem (one bad production run) hides inside a single carton if you sample only there.

4. Run the model checks on the sample. Module numbers, the model-specific tells (see the universal verification layers and per-model guides), function tests, condition grading.

5. The three-way match. Carton list ↔ caseback codes ↔ box labels on every sampled unit. Ten minutes per pallet; it catches substitutions and mix-ups while they're still free to fix.

6. Classify and file anything found. Transit damage → carrier claim. Factory defect → supplier claim under agreed defect terms. Shortage/mix-up → packing-list reconciliation. Each class has a different counterparty, deadline and evidence standard.

7. Balance payment only after reconciliation. Pre-shipment photos, document match and sample checks complete → then the balance. This sequence is standard professional trade — suppliers who resist it are telling you something.

Scale notes

First orders deserve wider samples and full pre-shipment photos; proven reorder lines earn lighter checks. And the counterintuitive point worth repeating: 100% inspection sounds safer but often isn't — inspector fatigue makes unit #600 worse than unit #60. Sampling done right is more reliable per unit checked, and it's what the industry's standards actually assume.

More verification guides

Buying stock and want it verified before shipping?

Every JOJO WATCH WHOLESALE order ships with model-labelled cartons, packing lists and pre-shipment photos — verified with exactly the checks in this guide.

Get a Verified Wholesale Quote
WhatsApp Us