THB Factory AP 15416CE Free-Sprung QC Review

THB Factory Audemars Piguet Royal Oak 15416CE Black Ceramic – Free-Sprung QC Review

The THB Factory Audemars Piguet Royal Oak Double Balance Wheel Openworked 15416CE.OO.1225CE.01 features a 41mm black ceramic case and bracelet, an openworked dial and a free-sprung Cal.3132-style movement.

An important update for this reference is that, according to the current factory information, THB now offers this model exclusively with the free-sprung movement configuration.

Based on our experience with this version, THB has developed a well-rounded combination of exterior finishing, ceramic construction and movement configuration. It is currently one of the versions we consider worth prioritizing when comparing this particular model.

Actual QC Data

QC Item Test Result
Factory THB Factory
Reference 15416CE.OO.1225CE.01
Model Royal Oak Double Balance Wheel Openworked
Case and Bracelet Full Black Ceramic
Dial Openworked
Movement Free-Sprung Cal.3132-style
Daily Rate +1 s/day
Amplitude 265°
Beat Error 0.3ms
Beat Rate 21,600 BPH
Crystal Sapphire
Measured Width 41mm
Measured Thickness 10.2mm
Current Version Free-Sprung Only

These results apply to this individual QC sample. Measurements and timegrapher readings may vary slightly between watches and testing conditions.

Free-Sprung Cal.3132 Movement

The most important technical feature of this updated THB version is its free-sprung movement configuration.

Unlike a conventional regulated balance system, a free-sprung balance is designed without a traditional regulator index. Rate adjustment generally depends on the balance’s inertia-adjustment system rather than changing the effective hairspring length through a regulator.

However, the presence of a free-sprung configuration alone does not guarantee superior accuracy or long-term reliability. Movement assembly, adjustment and actual QC results remain essential.

For this sample, the timegrapher recorded a daily rate of +1 second, with a 265° amplitude and 0.3ms beat error at 21,600 BPH.

The daily-rate result is comfortably within our usual ±0–15 seconds/day pre-shipment QC reference range.

These figures provide a useful initial indication of movement performance, although they do not establish accuracy across every position or throughout the full power reserve.

What We Found: Updated Version and Ceramic Construction

Two points distinguish this THB 15416CE from earlier versions and competing configurations.

1. Free-Sprung Version Update

According to the latest factory information available to us, the current production configuration is free-sprung only.

This matters because older listings, photographs or descriptions may still refer to previous movement configurations.

When comparing watches from different sellers, buyers should confirm the actual movement version rather than relying exclusively on the factory name or reference number.

2. Full Black Ceramic Construction

This version uses black ceramic for both the case and bracelet.

The Royal Oak’s angular design places particular emphasis on case geometry, bezel transitions, bracelet articulation and surface finishing. These details are especially noticeable on an openworked model, where the movement and exterior construction are both prominent visual features.

From our assessment, the THB version delivers a strong overall presentation, making it a competitive option for buyers who prioritize both the ceramic exterior and the updated movement configuration.

Ceramic offers good resistance to everyday surface scratching, but it can still chip or fracture under sufficiently strong impact, particularly around edges and corners.

Overall QC Assessment

The updated THB Factory Royal Oak 15416CE is a well-rounded version worth recommending based on our current assessment of its exterior quality and movement configuration.

The most meaningful changes are the move to the free-sprung-only configuration and the continued use of full black ceramic construction.

The tested sample also produced a favorable timegrapher result.

For buyers comparing available 15416CE versions, THB deserves consideration for its combination of ceramic finishing, openworked presentation and free-sprung movement. However, movement reliability and long-term durability should still be judged through continued use and actual testing rather than factory claims alone.

FAQ

Does the current THB Factory 15416CE still offer a regulated movement?

According to the latest factory information provided for this version, the current configuration is free-sprung only. Older inventory or listings should be checked individually.

Is the THB Cal.3132 movement free-sprung?

Yes. This tested version uses a free-sprung Cal.3132-style movement operating at 21,600 BPH.

Is the case entirely ceramic?

This version features a full black ceramic case and bracelet. The crystal is sapphire.

What are the actual case measurements?

The tested sample measured 41mm in width and 10.2mm in thickness. These are sample measurements rather than guaranteed dimensions for every unit.