Porous silicon substrates enable rapid deposition of thick diamond layers, resolving slow CVD rates while reducing wear in micromechanical timepieces.
Vacuum plasma treatment selectively removes ceramic layers from watch components, preserving underlying metal aesthetics and enabling part reuse.
A transparent annular cover secures a watch dial ring and central disc while enabling viewing of underlying twenty-four hour markings.
A time display device uses a summer winter selector to adjust legal and astronomical time indexes simultaneously.
A big date display mechanism balances indications across two moving parts to enable larger, more readable digits.
Luminescent security material on timepiece hands enables non-invasive authentication, preventing counterfeiting without altering visual appearance.
A nested luminescent layer maintains the aesthetic shine of faceted decorative elements in low light by reflecting internal illumination.
A movable indicator uses a fluorescent light guide to transmit luminous flux without physical contact.