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PATRIMOINE
VIGIL TEMPORIS®
When time deserves a sanctuary
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A watch winder imposes motion. VIGIL TEMPORIS® accompanies it.
A product winds a watch. VIGIL TEMPORIS® preserves time.
PATRIMOINE is not a conventional watch winder.
It is a horological preservation system, where technology fades into the background to let the mechanics live.
PATRIMOINE is Maison LAC’s signature watch case,
conceived as a refined sanctuary for exceptional timepieces.
Available in every leather from the Maison LAC collection, each creation expresses a distinct character while preserving the same timeless silhouette, balance and elegance.
At its heart, VIGIL TEMPORIS® technology keeps automatic watches in motion with quiet precision. Discreetly integrated within the case, it protects each timepiece while keeping it ready to wear.
Crafted with meticulous attention to proportion, texture and finishing, PATRIMOINE reflects a vision of luxury defined by restraint, durability and French savoir-faire.
VIGIL TEMPORIS®
Intelligent Time Preservation Architecture
At PATRIMOINE's heart lies VIGIL TEMPORIS®, an architecture of complementary technologies designed to preserve the mechanical life of fine automatic watches.

VT-START™
Controlled Spring Activation
Ensures the controlled reactivation of the mainspring when a watch is stopped or insufficiently wound.
A dedicated Wake-Up Cycle progressively restarts the movement without sudden acceleration or excessive torque, protecting the barrel, gear train and winding mechanism.
VT-BIOMOTION™
Biomimetic Rotation Kinematics
Inspired by the natural movement of the human wrist, VT-BIOMOTION™ follows a non-periodic rotation profile.
By alternating winding phases, micro-movements and rest periods, it supports the natural rhythm of the calibre while limiting unnecessary mechanical stress.
Calibrated daily rhythm:
650 TPD in one-direction mode.
900 TPD in bidirectional mode.
A precise rotation architecture designed to support optimal winding while preserving the natural rhythm of the calibre.


VT-SHIELD™
Magnetic Protection Architecture
VT-SHIELD™ protects the movement from magnetic disturbances generated by the modern environment.
The watch cylinder is isolated by a Permalloy magnetic shield, a high-permeability alloy used in precision engineering to absorb and neutralise magnetic fields before they can affect the timepiece.
Invisible by design, this protection helps preserve the balance spring and regulating organ two of the most sensitive components of a mechanical watch.
VT-SILENT™
Absolute Silence Transmission
VT-SILENT™ is built around a direct planetary gear transmission, eliminating belts and secondary drive mechanisms.
This architecture ensures perfectly controlled torque, smooth progressive motion and absolute silence during operation.
Designed for stability and discretion, it allows the mechanics to move with precision while preserving the quiet elegance of PATRIMOINE.


VT-ZERO™
Neutral Rest Position
At the end of each cycle, VT-ZERO™ automatically returns the watch to a perfectly balanced vertical rest position.
The timepiece is never left in a random orientation. By restoring a stable mechanical equilibrium, VT-ZERO™ helps prevent unnecessary strain on the rotor and gear train during storage.
SMART CROWN™
The Horological Gesture
Inspired by the traditional crown of a watch, SMART CROWN™ transforms the control of PATRIMOINE into an intuitive horological gesture.
A simple rotation selects the winding direction, while a fast rotation activates the bidirectional mode.
With one press, the program begins. With a second press, the cycle stops and the watch automatically returns to its VT-ZERO™ rest position.
AfteAfter 15 minutes, the light signature fades out automatically, preserving the quiet elegance of the case.

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