Restoring the Heart of the Franck Muller Conquistador 8005CC

A deep dive into our 50-point inspection and full overhaul process of the 8005CC. See the precision results from our 2026 service.

At RYBrandshop, we don't just sell "used" watches; we steward mechanical history. When this Franck Muller Conquistador 8005CC Chronograph entered our workshop, our mission was clear: to elevate it from a pre-owned timepiece to a functional masterpiece that performs at its theoretical limit. This isn't just a sales listing—it’s a record of restoration.

Beyond the Surface: The 50-Point Inspection

Every watch in our "Workshop" series undergoes a mandatory 50-point inspection. For this Conquistador, our master watchmakers performed a full overhaul (OH) completed on March 31, 2026. This process involves a complete teardown of the automatic chronograph movement. We replaced critical gaskets (パッキン) to ensure environmental sealing and updated the link screws (コマネジ) of the stainless steel bracelet to guarantee structural integrity.

Unlike standard market finds on Chrono24 that are sold "as-is," our 8005CC has been recalibrated for the modern collector. We treat each component with the reverence it deserves, ensuring the "Master of Complications" title remains a reality, not just a label.

Precision Results: The Science of Time

Performance is verified by data. Post-restoration, the results on the timegrapher were exceptional. The movement achieved a healthy Amplitude of 279°, indicating a strong, clean power delivery from the mainspring. Most impressively, the Beat Error was tuned to a near-perfect 0.1ms, ensuring high-frequency stability and long-term durability.

Following the mechanical service, the case and bracelet received a professional polish to restore their Grade AB luster, followed by a rigorous waterproof pressure test. This watch is no longer a relic of the past; it is a "Retail-Ready" work of art, performing with the vigor of a new timepiece.

Investment Peace of Mind

Buying from RYBrandshop means buying a promise of quality. Included with this 154g powerhouse is the original warranty certificate (undated), preserved to maintain provenance. Whether you are captivated by the white guilloché dial or the aggressive stepped bezel, you can wear this Conquistador knowing the heart inside beats with absolute precision. Authenticity Guaranteed.