QF Factory Rolex Explorer II 226570 Pre-Shipment QC Review

QF Factory Rolex Explorer II 226570 Pre-Shipment QC Review

The QF Factory Rolex Explorer II 226570 is currently available in two main movement configurations: regulated and free-sprung versions.

The watch inspected in this pre-shipment QC review is the regulated Cal.3285 version. A higher-priced free-sprung version is also available, so buyers should confirm the exact movement configuration before ordering to avoid comparing two different versions as if they were identical.

This specific watch measured 41.2mm in width, 12.7mm in thickness and 163.5g in weight, with a sapphire crystal. During the timegrapher test, it recorded a +11 seconds/day rate, 295° amplitude, 0.4ms beat error and 28,800 BPH beat frequency.

QC Test Results

Inspection Item Measured Result
Factory QF Factory
Model Rolex Explorer II 226570
Tested Version Regulated Version
Movement Cal.3285
Daily Rate +11 s/day
Amplitude 295°
Beat Error 0.4ms
Beat Rate 28,800 BPH
Crystal Sapphire Crystal
Width 41.2mm
Thickness 12.7mm
Weight 163.5g

These measurements were recorded from this specific watch during the pre-shipment QC inspection. Minor variations may occur between individual watches due to power reserve, testing position, production tolerances, bracelet sizing and measurement methods.

Cal.3285 Movement Performance

This specific QF Factory Explorer II 226570 is equipped with a regulated Cal.3285 movement.

The timegrapher recorded:

Daily Rate: +11 seconds/day
Amplitude: 295°
Beat Error: 0.4ms
Beat Rate: 28,800 BPH

The 295° amplitude indicates a strong power state during this particular test. The beat error measured 0.4ms, while the daily rate was recorded at +11 seconds per day.

These figures are primarily used to document the condition of this specific movement during the pre-shipment inspection.

Actual mechanical watch accuracy can vary depending on power reserve, temperature, resting position and wearing habits. Timegrapher readings should therefore be treated as a record of the movement under the specific test conditions rather than a guarantee of identical daily performance in every situation.

Regulated vs Free-Sprung Versions

One of the most important points to understand when purchasing the QF Factory Rolex Explorer II 226570 is that both regulated and free-sprung versions are currently available.

The version tested in this QC review is:

Regulated Cal.3285 Version

Another option is:

Free-Sprung Version

The free-sprung version is more expensive.

For this reason, different QF Factory Explorer II 226570 listings should not be compared solely by the factory name and model number.

If one price refers to the regulated version and another refers to the free-sprung version, they represent different movement configurations and may naturally have different prices.

Buyers who specifically want the free-sprung configuration should confirm the exact version before ordering.

Regardless of whether the regulated or free-sprung version is selected, individual QC remains important. Movement configuration is only one part of the assessment; actual timegrapher performance, dimensions, weight, functionality and exterior finishing should also be checked.

41.2mm Width and 12.7mm Thickness

This specific QF Factory Rolex Explorer II 226570 measured 41.2mm in width and 12.7mm in thickness.

Actual measurements provide useful reference data when comparing different versions.

When comparing different factories or production batches, physical QC measurements can provide more practical information than relying solely on advertised specifications.

Small dimensional variations may occur between individual watches due to production tolerances and measuring positions. The 41.2mm width and 12.7mm thickness therefore represent the actual measurements of this specific QC sample.

163.5g Measured Weight

The measured weight of this specific watch is 163.5g.

Weight can be useful when comparing different versions, but it should not be used as the only indicator of overall quality.

The wearing experience is also influenced by case dimensions, thickness, bracelet construction and overall weight distribution.

Minor weight variations may also occur due to bracelet sizing and production tolerances, so the 163.5g figure should be treated as the actual measurement of this specific watch.

Sapphire Crystal and Exterior QC

This watch is fitted with a sapphire crystal.

In addition to movement and dimensional testing, the Explorer II 226570 should be inspected for dial alignment, hands, hour markers, date window, bezel markings, crown, case edges, bracelet and clasp finishing.

Movement specifications alone do not determine the overall quality of an individual watch.

Even when two watches use the same Cal.3285 configuration, assembly quality, exterior details and actual movement condition should still be evaluated through individual QC.

GMT Function Testing

The Explorer II incorporates a GMT display, making functional testing another important part of the pre-shipment QC process.

In addition to reviewing timegrapher data, time adjustment, date operation and GMT-related functions should be physically tested to confirm that they operate correctly.

Static photographs are useful for checking exterior details, but actual operation testing provides additional information about the functional condition of the specific watch.

Combining exterior inspection, movement testing and functional testing therefore provides a more complete QC assessment than relying on a single specification.

Overall QC Assessment

Based on this pre-shipment inspection, the QF Factory Rolex Explorer II 226570 regulated version produced stable overall test results.

The Cal.3285 movement recorded:

+11 seconds/day
295° amplitude
0.4ms beat error
28,800 BPH

The specific watch also measured:

Width: 41.2mm
Thickness: 12.7mm
Weight: 163.5g
Crystal: Sapphire

For this model, one of the most important purchasing considerations is the distinction between the regulated and free-sprung versions.

The watch tested here is the regulated version, while the free-sprung configuration is priced higher. Therefore, if different QF Factory Explorer II 226570 listings show noticeable price differences, the exact movement configuration should be confirmed before comparing price and overall quality.

Confirming the regulated/free-sprung configuration, actual movement test results, dimensions, weight and functional condition before ordering provides a more accurate way to compare the available versions.

FAQ | QF Factory Rolex Explorer II 226570

What movement does the QF Factory Explorer II 226570 use?
The watch tested in this QC review is equipped with a regulated Cal.3285 movement. QF Factory also offers a free-sprung version, so buyers should confirm the exact configuration before ordering.

What were the timegrapher results?
The movement recorded a +11 seconds/day rate, 295° amplitude, 0.4ms beat error and 28,800 BPH beat frequency.

How many QF Factory Explorer II 226570 versions are available?
There are currently regulated and free-sprung versions. The watch tested in this article is the regulated version.

Is the free-sprung version more expensive?
Yes. The free-sprung version is priced higher than the regulated version. The exact movement configuration should therefore be confirmed before comparing prices.

What are the actual dimensions and weight?
This specific watch measured 41.2mm in width, 12.7mm in thickness and 163.5g in weight. Minor variations may occur between individual watches.

What should buyers confirm before ordering?
First confirm whether the watch is the regulated or free-sprung version. Then review the individual movement test results, dimensions, weight, GMT functionality and exterior QC. This avoids comparing different configurations as though they were the same product.