Watch Glossary
1104 horological terms explained · 2/2
Distinctive snowflake-shaped hour markers found on Sea-Dweller models.
Watch movement powered directly by solar panels, requiring no battery replacement.
Case construction where the caseband is machined entirely from solid metal, no hollow sections.
Solid metal links connecting band to case, versus hollow bracelet end links.
Bracelet link constructed from a single solid piece of metal.
Bracelet links that are completely filled, heavier and more durable than hollow
Chiming mechanism that strikes the hours and sometimes quarters automatically at set times.
Omega's legendary chronograph, the first watch worn on the Moon in 1969
Dial with radial cracks emanating from center, resembling spider web pattern
Axial and radial deviation of lathe spindle rotation affecting precision of turned watch components.
Rolex's silicon hairspring and balance wheel assembly for enhanced chronometric performance.
Chronograph with two independent hands allowing measurement of two simultaneous time intervals.
Durable watch designed for athletic activities with enhanced water resistance and readability.
Specialized tool for removing and installing spring bars that attach watch straps
Seiko's unique technology combining mechanical precision with quartz accuracy using a mainspring.
Specialized steel alloy used in hairsprings and mainsprings for its elasticity and durability
Corrosion-resistant iron alloy containing chromium and nickel, standard watchcase material
High-grade corrosion-resistant steel alloy with superior polishing and durability characteristics.
Durable metal bracelet, corrosion-resistant, polished or brushed finish
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.
Software design allowing smartwatch apps to function independently without tethered smartphone
Watch dial depicting the night sky map with stars and constellations for a specific latitude.
Medical-grade stainless steel with low carbon content, highly corrosion-resistant
Exotic dial style with distinctive crosshair pattern, highly sought vintage collectible.
Installation of new watch stem when cracked or stripped internally
Case design featuring distinct stepped or tiered levels on the sides, creating dimensional appearance.
Dial inlaid with natural stone materials like marble, granite, or slate for unique patterns
Biometric algorithm analyzing heart rate variability to assess psychological tension
Complication using hammers and gongs to audibly announce time or trigger alarms at predetermined intervals.
Smaller dial face within main dial for chronograph or GMT functions
Smaller auxiliary dial displaying seconds, chronograph functions, or date complications.
Smaller dials within the main dial displaying specific functions like chronograph elapsed time or subdued seconds.
Iconic Rolex dive watch with rotating bezel and exceptional water resistance for diving.
NATO strap variant in soft suede material, luxurious casual appearance
Soft napped leather, luxurious feel, requires careful maintenance
Combined technique using radial brushing patterns to create dynamic light-catching dial effects.
Dial with radial brushed finish creating light-reflecting pattern
Radial brushing pattern emanating from center, creating light-reflecting striations.
Radial brushing pattern emanating from center point, creating a sunburst visual effect.
Radial brushing pattern creating rays of light emanating from center
Complication displaying the times of sunrise and sunset for the wearer's location or selected city.
Mechanical display showing the times of sunrise and sunset for a specific geographic location.
Complication displaying precise times of solar rise and set for specific geographic location.
High-performance luminous paint offering exceptional brightness and extended glow time.
Advanced photoluminescent material applied to hands and indices for enhanced nighttime visibility.
Elegant S-shaped bracket used to adjust the hairspring length for fine timekeeping adjustments
Official certification requiring 60% Swiss value added and assembly in Switzerland
Movement minimum 60% Swiss-manufactured content, Sellita SW200/500, ETA movements qualify
Omega's proprietary silicon hairspring providing superior stability and anti-magnetic properties.