Watch Glossary

Process of zeroing motion sensors to ensure accurate step counting and gesture recognition

Maximum acceptable asymmetry reading on timing machines before movement adjustment is required.

Specialized tool for safe removal of broad arrow-marked crowns without damage.

Specialized accessory for case presses designed to properly seat and compress case back gaskets.

Tool designed to safely open and close watch cases without damage

Pressurized fluid system in case presses that generates controlled force for crystal and case back sealing.

Electronic force sensor in modern case presses providing digital readout of applied pressure values.

Calibrated manometer on case presses indicating applied force in tons or kilograms during assembly.

Tool used to safely open and close screw-down case backs without damage

The specific tool trajectory used to create burnished pyramids in clous de Paris motif.

Positioning system for punch tool ensuring regular spacing of nail-head dots across dial.

Machining technique performed without heat application

Precision clamping device for holding small watch components

Draw tube mechanism on precision watch lathes that tightens collets for secure component holding.

Precision tool determining exact metal collet dimensions for secure stone mounting.

Optical instrument used in precision dial finishing verification

Tool measuring subdial counter positioning and spacing accuracy

Specialized tool for extracting watch crown with minimal damage to threads

Precision guidance collar in case presses that aligns watch crystals before pressing operations.

Temperature-controlled process bonding adhesive used in invisible settings.

Visual representation on timing machines showing real-time deviation from chronometer standard accuracy.

Precision lathe attachment for engraving repeating geometric patterns on dial surfaces.

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Mechanical press tool for installing watch hands with precise alignment and pressure

Precision welding technique using lasers for delicate watch case and component repairs

Measurement of geometric accuracy and flatness of a watchmaking lathe's supporting bed structure.

Replaceable gripping element in watch lathe chucks that holds components during turning operations.

Support bearing assembly on watchmaking lathes preventing component deflection during precision turning.

Graduated reference wheel on watchmaking lathes for precise pitch control during screw cutting operations.

Electronic component in timing machines that amplifies acoustic signals from watch escapement contact.

Specialized tool for securely holding watch movement during service and repair

Flexible jointed support structure in movement holders enabling 360-degree rotational access to calibers.

Threaded collar mechanism in movement holders that securely grips movements by case lugs or bridges.

Soft elastomer or leather-lined component in movement holders that prevents damage to fragile watch parts.

Vertical positioning system on movement holders that positions calibers at ergonomic working heights.

Ferrous metal foundation on movement holders allowing positioning on workshop ferrous work surfaces.

Bearing-mounted swivel on movement holders enabling 360-degree horizontal rotation without component stress.

Specialized tool used to create clous de Paris and hobnail patterns on dial blanks.

Measurement system quantifying stone-to-metal ratio in pavé-set watch surfaces.

Hardened steel plate in case presses that distributes uniform pressure across watch case components.

Axial and radial deviation of lathe spindle rotation affecting precision of turned watch components.

Specialized tool for removing and installing spring bars that attach watch straps

Precision punches used with staking tools to form, shape, or set components onto watch movements.

Rigid base platform in staking sets that prevents component deformation during pressing operations.

Central rotating shaft in a staking set that holds and guides various dies during component assembly.

Interchangeable hardened steel die that fits into a staking tool to perform specific component operations.

Marked measuring surface on staking sets indicating height relationships for different die combinations.

Mechanical advantage system on staking sets providing controlled, consistent pressure application force.

Final metal edge folding and polishing operation securing bezel-set gemstones.

Reference standard component used to verify accuracy and sensitivity of timing machine sensors.

Digital circuit in timing machines measuring escapement frequency in oscillations per hour with precision.

Multiple electromagnetic or optical sensors in timing machines that detect and measure balance wheel vibrations.