THB Factory Cartier Santos WSSA0039 QC Inspection Report
Product Information
* Factory: THB Factory
* Brand: Cartier
* Collection: Santos
* Reference: WSSA0039
* Dial: Black Dial with Roman Numerals
* Strap: Rubber Strap
* Movement: 9015 Automatic Movement
* Crystal: Sapphire Crystal
Technical Specifications
* Measured Case Width: 39.0 mm
* Measured Case Thickness: 9.9 mm
* Measured Weight: 93.3 g*
* Movement: 9015 Automatic Movement
* Beat Rate: 28,800 BPH
* Crystal: Sapphire Crystal
*The 93.3 g weight is the actual measurement of the individual watch inspected. Minor variations may occur between individual watches due to strap configuration, production tolerances and assembly differences.
Timegrapher Test Results
* Daily Rate: +1 Second/Day
* Amplitude: 293°
* Beat Error: 0.2 ms
* Beat Rate: 28,800 BPH
Testing Note
These readings were recorded from this individual watch during its pre-shipment QC inspection.
Mechanical movement performance can vary depending on mainspring power, watch position, ambient temperature and testing conditions. The recorded +1 second/day represents the performance observed at the time of inspection rather than a permanently fixed daily rate.
For QC evaluation, the rate should be considered together with amplitude, beat error and actual functional testing.
9015 Automatic Movement Performance
This THB Factory Cartier Santos WSSA0039 is equipped with a 9015 automatic movement operating at 28,800 vibrations per hour.
The recorded results were:
* Daily Rate: +1 Second/Day
* Amplitude: 293°
* Beat Error: 0.2 ms
* Beat Rate: 28,800 BPH
The movement showed consistent performance under the recorded testing conditions.
In addition to timegrapher readings, automatic winding, manual winding, crown operation and time setting should be individually tested before shipment.
39mm Case, 9.9mm Thickness and 93.3g Weight
The individual watch inspected measured:
* Case Width: 39.0 mm
* Case Thickness: 9.9 mm
* Measured Weight: 93.3 g
The combination of the 39 mm measured width and relatively slim 9.9 mm thickness gives the watch a compact profile.
The rubber strap also contributes to the relatively light 93.3 g measured weight, creating a different wearing feel compared with a full-steel bracelet configuration.
These figures represent the individual QC sample and should not be treated as guaranteed measurements for every production piece.
Black Roman Numeral Dial Inspection
The black dial with Roman numeral hour markers is an important visual feature of this WSSA0039 configuration.
The high-contrast layout makes several details particularly relevant during close QC inspection:
* Roman numeral printing
* Dial surface condition
* Logo and text positioning
* Hour-marker consistency
* Hand alignment
* Dial cleanliness
* Crystal clarity
Because the Santos dial design uses strong geometric elements, even small positioning differences can become noticeable when viewed closely.
Sapphire Crystal and Bezel Inspection
The watch uses a sapphire crystal.
Pre-shipment inspection should include:
* Crystal clarity
* Surface condition
* Correct installation
* Visible scratches or damage
* Bezel alignment
* Bezel surface finishing
* Visible screw positioning
The polished and brushed areas should also be inspected under different lighting angles because reflections can make small finishing differences easier to identify.
Rubber Strap and Wearing Feel
This configuration uses a rubber strap, which reduces overall weight compared with a full-steel Santos configuration.
QC should inspect:
* Rubber surface condition
* Strap flexibility
* Strap-to-case connection
* Alignment on both sides
* Buckle or clasp operation
* Locking security
The strap should sit correctly against the case and operate normally without obvious fitting issues.
THB and BV Version Comparison
For this Cartier Santos reference, BV Factory remains a strong comparison point when exterior detail execution is the main priority.
Based on the versions being compared, BV can show advantages in some of the finer exterior details and overall refinement.
THB’s main attraction is different: its price-to-quality balance.
The inspected THB watch showed good overall workmanship, while its pricing can make it an alternative worth considering for buyers who place greater emphasis on value rather than seeking the highest level of detail available from competing versions.
This distinction is useful because “better details” and “better value” are not necessarily the same evaluation criterion.
Actual individual QC should still determine whether the dial, case, movement, strap and assembly of a specific watch meet expectations.
QC Observations
This THB Factory Cartier Santos WSSA0039 recorded:
* +1 second/day
* 293° amplitude
* 0.2 ms beat error
* 28,800 BPH
* 39.0 mm measured width
* 9.9 mm measured thickness
* 93.3 g measured weight
The 9015 automatic movement produced consistent readings under the recorded testing conditions.
Overall workmanship on the inspected THB version was good. The black Roman numeral dial, sapphire crystal, case finishing and rubber-strap configuration presented well as a complete package.
When comparing factories, BV remains relevant for buyers who prioritize finer exterior detail execution. The THB version, however, provides a more price-conscious alternative with a good overall level of finishing, which is where its value proposition becomes more noticeable.
For that reason, the two versions should be compared according to priorities rather than treating factory name alone as the final quality standard.
Pre-Shipment QC Inspection
* ✔️ 9015 automatic movement checked
* ✔️ Timegrapher readings recorded
* ✔️ +1 second/day rate documented
* ✔️ 293° amplitude recorded
* ✔️ 0.2 ms beat error recorded
* ✔️ 28,800 BPH beat rate confirmed
* ✔️ Automatic winding function checked
* ✔️ Manual winding function checked
* ✔️ Crown operation checked
* ✔️ Time-setting function checked
* ✔️ Case width measured at 39.0 mm
* ✔️ Case thickness measured at 9.9 mm
* ✔️ Individual watch weight measured at 93.3 g
* ✔️ Sapphire crystal inspected
* ✔️ Black dial surface checked
* ✔️ Roman numeral printing inspected
* ✔️ Hand alignment checked
* ✔️ Bezel and visible screw positioning inspected
* ✔️ Case finishing checked
* ✔️ Rubber strap condition inspected
* ✔️ Strap-to-case integration checked
* ✔️ Clasp operation checked
* ✔️ Overall exterior assembly inspected
* ✔️ Final pre-shipment QC inspection completed
QC Status
Inspection Result: PASS
QC Status: Pre-Shipment Quality Inspection Completed
