TAPISSERIE ENGINE LATHE
The tapisserie engine lathe is a mechanical engine-turning machine used primarily to reproduce intricate decorative patterns on dials or casebacks. This tool is distinguished by its unique capacity to faithfully replicate figurative motifs engraved into a template, known as tapisserie patterns, from which the technique derives its name.
Operating Principle
Unlike the rose engine lathe, which generates patterns through the combined action of cams and oscillating movements, the tapisserie engine lathe functions by mechanically copying a moulded or machined bronze matrix. This matrix contains a recessed pattern intended to be transferred onto the dial.
A tracer stylus precisely follows the relief of the matrix while a synchronised graver engraves the reduced version of the design onto the dial or caseback surface. The system also accounts for engraving depth in order to render three-dimensional motifs.
The reduction ratio between the matrix and the engraved piece is adjustable, allowing the design to be adapted to different dial or caseback sizes while preserving an exceptional level of detail.
Craftsmanship and Mastery
Operating a tapisserie engine lathe requires impeccable technical mastery: the tracing of the matrix and the engraving must be perfectly synchronised, without any error or slippage.
Despite its mechanical nature, the entire process remains deeply artisanal. Each dial decorated using this method is the result of meticulous adjustments, constant supervision, and expert craftsmanship.
Preserving a Heritage Skill
The use of the tapisserie engine lathe, now limited to a handful of Swiss manufactures, embodies a profound commitment to horological tradition. At a time when engraving can be fully automated or performed by laser, maintaining this method is a testament to the values of authenticity, quality, and the transmission of a unique technical heritage.