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Watch Inspection
On-site quality control for analog quartz and digital watches. Time accuracy, functions, strap strength and packaging are checked against your approved specification before the goods leave the factory.
CNAS-accredited to ISO/IEC 17020 · Full-time engineers · No travel or weekend surcharges
Importers and brands book UTS inspectors for shipment-stage quality control across China and Asia.
48hrsfor an inspector to reach your factory after booking
24hrsto receive the full PDF report with defect photos
100%barcode read rate required on every sampled piece
1m × 4free-fall drops on the bare watch, and it must still run
What Goes Wrong Inside a Watch Shipment
A watch can look fine in the box and still fail on your customer's wrist. These are the problems our inspectors are briefed to catch before your payment is released.
A movement that stops after shipping
A four-hour running test exposes stopped or intermittent movements that a quick glance at a ticking watch never shows.
Hands that scrape or sit off the hour
Hand alignment is checked at the 3, 6, 9 and 12 o'clock positions on every sampled piece, including clearance from dial, indexes and crystal.
Time drift beyond your spec
Samples are synchronized with a reference clock and compared after the test period. The report records the seconds gained or lost, not a guess.
Straps and buckles that fail in the box
Pull and torsion tests with a force gauge expose weak spring bars, loose connecting pins and closures that pop open under load.
Dead segments on digital displays
Every digit, icon and backlight is checked against the approved function list — missing segments, flicker and weak contrast included.
Labels and barcodes that stall at the warehouse
Scanned content must match your SKU, model and purchase order data. An unreadable barcode is recorded for correction and recheck.
What Counts as a Defect on a Watch
Not every scratch sinks a shipment, and not every ticking watch is a good one. Here is how findings are usually graded. Your own defect definitions always come first when you have them.
Usually majorA stopped watch, a buckle that will not stay closed, a broken strap connection, a serious function failure, a big mismatch with your spec
Usually minorSmall cosmetic marks that do not affect use — a light scratch, a slightly uneven edge coating
Treated more strictlySharp points or edges that can cut the wearer's skin. Safety comes before the sampling tables
Depends on severityRust or oxidation on parts that touch skin. Light tarnish and heavy corrosion are not the same finding
One Booking, Four Checkpoints
Every watch inspection follows a written working instruction. Your purchase order, specification, approved sample and buyer requirements decide the exact test scope.
Time & Function
Time setting, running and accuracy, hand and display alignment — plus alarm, calendar, stopwatch and backlight where the approved model has them.
Strap & Housing
Material-matched strap checks, buckle action, pull and torsion tests, and a full review of case, crystal and back cover against the approved sample.
Battery & Water Resistance
Battery type, voltage and working current recorded as real readings. Water-resistance testing when your approved specification calls for it.
Dimensions & Packaging
Case and strap measurements, marking consistency across watch and box, barcode scans, inner packing review and a shipping-carton drop test.
The Functions We Actually Run Through
We check what your model really has — nothing assumed, nothing skipped. The approved product documents set the list.
Analog quartzCrown positions, hands that move smoothly without jumping or touching, date and day setting where fitted
DigitalTime set and saved correctly, alarm, calendar, stopwatch, countdown, backlight, dual time — each one pressed, not just looked at
Buttons and crownFull press-and-release on every control. Sticking, delayed response or a button that stays down gets recorded
Other movementsMechanical, smart and GPS watches need model-specific tests — send the model and we confirm the scope first
Your PO and spec become our checklist.
Send the purchase order, product specification and approved sample today. The inspection checklist is confirmed with you before anyone enters the factory.
Send Your Watch Spec
Time Accuracy, Measured in Seconds
Timekeeping is tested in separate steps — setting, running, accuracy and hand alignment — because one combined "time test" can hide different failures.
- Quartz watch reference
- ±1 second per day
- LCD watch or clock reference
- ±3 seconds per day
- Running test
- 4 hours, Special Level S-2
- Hand alignment limit
- ±5 minutes at 3, 6, 9, 12
These are UTS working-instruction references. When your approved movement or product specification states a different limit, your document wins — and the report shows the measured result, not just pass or fail.
Strap, Buckle and Case Under Load
A clean case finish does not compensate for a weak spring bar or a buckle that opens by itself. Each strap material gets its own defect review, then the connection is tested with a force gauge under Special Level S-2.
Leather strapCracking, peeling, edge coating, stitching, adjustment holes, lining
Silicone & rubberCracks, whitening, bubbles, deformation, sticky surfaces after bending
Metal braceletLink movement, pins, sharp edges, coating, clasp action, case attachment
Fabric strapFraying, loose weave, seams, thread ends, hole reinforcement
After the pull and torsion tests, the strap must show no breakage, no permanent stretch and no loss of adjustment or locking. The bare watch then takes four 1-meter drops onto a wood surface in different directions — no breakage, and it must keep running.
Case, Crystal and Back Cover
This is the part your customer touches first. Every sampled watch is compared with the approved sample, and one piece per inspection can be opened for a look inside.
The case
Scratches, dents, peeling plating, uneven gaps, loose screws, sharp edges, bent lugs, wrong or badly placed logos — checked against the approved sample, not against memory.
The crystal
Cracks, chips, scratches, dust or fibers trapped underneath, visible distortion. Where a protective film hides the surface, selected pieces get a closer look so nothing hides below it.
The back cover
It must sit flat with no abnormal gap, screws complete and seated. Model, material, battery and water-resistance markings are compared with your product documents.
One piece opened
When opening is in scope, we review the visible movement, battery, spacers, insulation and internal cleanliness on one sample — then reassemble it and check it still runs.
Battery and Water Resistance — Without the Guesswork
A watch can pass a quick function test while its voltage or working current sits outside the approved requirement. Where measurement is in scope, the actual readings go into the report.
Battery checks
Battery type, voltage, working current, polarity, seating and contact condition are measured under Special Level S-2 and compared with your battery or movement specification.
Water-resistance claims
The claim on dial, case back, tags, box and manual is first checked for consistency, then performance is tested with suitable equipment inside the approved test range.
After the test
Samples are reviewed again for continued operation, fogging under the crystal, moisture entry and any loosening of housing parts.
An honest limit
An on-site inspection does not certify a watch to ISO 22810. Where formal verification is required, a laboratory test program is arranged separately.
Sampling You Can Defend to Your Customer
Unless you specify another plan, the watch working instruction samples to ANSI/ASQ Z1.4 (ISO 2859-1) at General Inspection Level II.
- Main workmanship sample
- General Level II
- Critical defects
- None accepted
- Major defects
- AQL 2.5
- Minor defects
- AQL 4.0
- Selected on-site tests
- Special Level S-2
AQL is not a defect percentage you agree to accept. Sample size and acceptance numbers are read from the ANSI sampling tables against your actual lot size.
One failed buckle can cost you the whole account.
A man-day of inspection costs less than one return wave, one chargeback dispute or one delisted SKU. Book the check before the cartons close.
Request an InspectionPackaging That Protects the Watch, Not Just the Box
Watch packaging has its own failure modes: a buckle rubbing the crystal, a crown under pressure, a strap folded tight enough to crack. The inner packing is reviewed piece by piece, then the shipping carton is dropped — one corner, three edges, six faces.
Carton under 9.5 kg
Drop height 76 cm (30 in). Contents are reviewed before the test, repacked the same way, then opened again for damage.
Carton 9.5 – 18.6 kg
Drop height 61 cm (24 in). After the drop, the gift box must still be suitable for sale and the watch must not have moved inside.
Carton 18.6 – 27.7 kg
Drop height 46 cm (18 in). Crystal, case, crown, strap, buckle and basic functions are all re-checked after impact.
Inside the selling box
Correct model, color and strap together; manuals and warranty cards present; product held firmly in its tray; carton marks and quantities correct.
What We Need From You
Better documents mean a sharper checklist. Send what you have — our office team reviews everything before the inspection date is fixed.
The orderPurchase order with quantities, plus the factory address and your preferred inspection date
The productSpecification sheet, approved sample if available, instruction manual and movement details
The packagingArtwork, label information, hang tag and warranty card requirements, carton marks
Your rulesYour own defect definitions, test requirements or retailer's inspection standard when you have one
No approved sample yet? A sample evaluation before bulk production gives you that reference point.
From Booking to Report
You deal with one coordination desk from the first email to the final PDF.
Send your documents
Purchase order, product specification, approved sample and factory address — that is all we need to quote.
Checklist confirmed
Your requirements, defect definitions and special tests are fixed in writing before the inspection day.
Inspector on site
A full-time UTS engineer draws random samples at the factory and signs in by GPS at the gate.
Report within 24 hours
A clear pass, fail or hold result with measured readings and defect photos, reviewed before release.
A Report of Numbers, Not Adjectives
"The watch gained 0.5 seconds" tells you something. "Time test passed" does not. Every finding in your report is tied to the actual sampled piece and the test scope.
Measured readingsSeconds gained or lost, battery voltage and working current, dimensions against tolerance
Test evidenceDrop-test outcomes, pull and torsion results, water-resistance test conditions
Defect photosClassified as critical, major or minor, each linked to the sample it came from
A clear resultPass, fail or hold — with the lot and sample sizes stated, so your release decision is documented
When to Send an Inspector
Most watch orders need one Final Random Inspection before shipment. New suppliers and new models earn an earlier look.
Before bulk production
A sample evaluation compares workmanship, dimensions, functions and packaging against your approved requirements while changes are still cheap.
5% – 10% complete
An Initial Production Inspection for new models and new suppliers, or when early production risk needs a documented answer.
30% – 50% complete
A During Production Inspection catches a drifting process while most of the order is still fixable.
100% complete, 80% packed
The Final Random Inspection — the standard shipment-stage check and the last chance to stop a bad lot before it ships.
Where We Can Be in 48 Hours
Watch factories sit mostly in Guangdong and Fujian — our inspectors are already there. The same 48-hour promise covers 13 Chinese provinces and 13 Asian countries, with no travel fee and no weekend surcharge added to your quote.
Accredited, Not Self-Declared
UTS is accredited by CNAS against ISO/IEC 17020 as an inspection body and certified to ISO 9001:2015. Inspections have run continuously since 2006, carried out by full-time engineers — not freelancers hired per job.
AccreditationCNAS against ISO/IEC 17020, inspection body certificate IB0642
Inspecting since2006 — twenty years of third-party product inspection
CoverageFactories across 13 Chinese provinces and 13 Asian countries
OfficesGuangzhou / Foshan · Hangzhou · Hong Kong
A third-party inspection documents what the agreed sample shows. It does not promise a zero-defect shipment, and it does not replace your supplier's responsibility for quality — that honesty is what keeps the report useful.
Shipping More Than Watches?
Most watch importers we work with buy other lines too. One coordination desk can book these inspections at the same factory visit or on a separate date.
Eyewear Quality Control
Lens condition, frame alignment and hinge function against your approved sample and spec.
Read the eyewear guide
Bags & Luggage Inspection
Stitching, zippers, handle strength and packing — the same shipment-stage discipline.
Read the bag guide
Earphones & Headsets
Sound output, microphone function and cable checks for your audio accessories.
Read the earphone guide
Toys & Children's Products
EN 71 and ASTM F963 aligned checks, small parts and mechanical safety tests.
See the toy serviceRead Before You Book
The same working methods our inspectors use, written for buyers.
Watch Inspection Checklist — the full technical versionutsinspection.com · Guide
ANSI Sampling Tables — how AQL sample sizes are readutsinspection.com · Quality Terms
Defect Classification — critical, major and minor explainedutsinspection.com · Quality Terms
How to Prepare for a Final Random Inspectionutsinspection.com · Guide
Amazon FBA Pre-Shipment Checklistutsinspection.com · Guide
Multi-SKU Orders — sampling and packaging reviewutsinspection.com · Guide
One defective watch costs more than one inspection day.
Tell us the model, quantity, factory location and your target date. You get a written man-day quote before you commit to anything.
Get a Written QuoteQuestions Buyers Ask Before Booking
How much does a watch inspection cost?
We charge per man-day — one inspector for one working day. The quote depends on factory location, order size and test scope. Travel and weekend work are already included, and you receive the full quote in writing before you commit.
Which watch types do you inspect?
The standard checklist covers analog quartz watches and digital watches. Mechanical watches, smartwatches, GPS models and watches with wireless or sensor functions may need additional model-specific tests — tell us the model and we confirm the scope before booking.
What time-accuracy tolerance do you apply?
Our working instruction references ±1 second per day for quartz watches and ±3 seconds per day for LCD models. If your approved movement or product specification states a different limit, that document takes priority. Either way, the report shows the measured seconds gained or lost for each sample.
Can you test water resistance on site?
Yes, when the test is in the approved scope — pressure, duration and sample quantity follow your product specification or instruction manual. An on-site check records performance under the agreed method; it does not certify the watch to ISO 22810. Formal laboratory verification can be arranged separately.
What happens if my watch order fails inspection?
You receive a fail or hold result with photos of every defect and the classified defect list. You decide what happens next — rework, sorting, a targeted re-inspection after correction, or negotiation with the factory. The release decision is always yours.
Who picks the pieces that get checked?
Our inspector draws samples randomly from different cartons, positions, colors and models according to the sampling plan. Pieces pre-selected by the factory are not accepted as random shipment samples.
My order has many SKUs — how is that sampled?
Each model, color and strap combination gets its own sample drawn from its own cartons, so one strong SKU cannot hide a weak one. The report breaks findings down per SKU. For big mixed orders, read our multi-SKU inspection guide or just send the packing list — we will propose the sampling split.
How fast can you be on site, and when do I get the report?
An inspector can reach factories across China and 13 Asian countries within 48 hours of booking. The verbal result comes the same day, and the full PDF report with measured readings and defect photos follows within 24 hours.
Put an Inspector Inside Your Watch Factory
Send the model, order quantity, factory location and your preferred date. The coordination desk replies with a confirmed checklist and a written quote.
