Watch Glossary
1104 horological terms explained · 2/2
Hour markers filled with luminescent material enabling nighttime visibility
Glow-in-the-dark hour markers and hands enabling underwater visibility in darkness.
Phosphorescent coating on hands and indices enabling visibility in darkness.
Rolex's larger hour markers and hands introduced for improved readability
Distinctive hour hand with circular, triangular, and rectangular sections.
Distinctive hand shape with Mercedes-logo design for hour hand
Military-mandated luminous material meeting visibility standards for 8+ hours in complete darkness.
Abbreviated code printed on military-issue dial indicating service branch and acceptance specification.
Outer dial ring with minute markers or railway design for precise time reading.
Dial with multiple depth levels creating three-dimensional appearance
Soft, milky dial finish with subtle sheen and minimal reflectivity.
Sunken dial design resembling pie with raised outer edge, creating dimensional depth effect
Dial design using pillars or columns as hour markers
Ceramic dial surface offering durability and distinctive matte aesthetic with enamel-like finish
Hour markers screen-printed or applied to dial surface in single plane dimension
Scale for measuring heart rate by counting pulse beats
Scale used with chronograph to measure heart rate from pulse beats.
Mechanism allowing rapid date adjustment without advancing hour hand to set accurately
Vintage dial style with distinct numerals used for railway timekeeping
Circular engraved area between dial edge and case inner bezel.
Dynamic e-ink dial elements that update synchronously with hybrid watch mechanics
Classical Roman numeral hour markers for elegant formal appearance
Date wheel with alternating Arabic numerals and dashes creating a segmented appearance
Dial with time markings concentrated in sectors rather than full circle.
Transparent dial exposing internal movement and bridges for aesthetic display.
Rotating bezel with logarithmic scale for mathematical calculations
Polished bezel without texture or ridges for sleek appearance
Dial inlaid with natural stone materials like marble, granite, or slate for unique patterns
Smaller dial face within main dial for chronograph or GMT functions
Smaller auxiliary dial displaying seconds, chronograph functions, or date complications.
Dial with radial brushed finish creating light-reflecting pattern
Radial brushing pattern emanating from center, creating light-reflecting striations.
High-performance luminous paint offering exceptional brightness and extended glow time.
Graduated scale measuring speed based on distance and time elapsed.
Scale calculating distance based on time delay between light and sound
Scale calculating distance based on sound propagation and light timing.
Vintage dial with distinctive brown patina from age and UV exposure
Rotating bezel designed to rotate only counterclockwise for safety
British military designation on dial indicating 10-day power reserve requirement for issued timepieces.
Grid-pattern embossed dial surface resembling waffle texture for enhanced visual interest
Natural wood veneer dial providing warm organic appearance with natural grain variations