When the Sun rises to its southernmost and northernmost positions in relation to the celestial or terrestrial equator. The June and December solstices coincide with the longest and shortest days of the year respectively.
Terms with the same letter
Safety roller Sapphire Scale Scratchproof Screw Second Secret spring Secular Perpetual calendar Self-winding (Automatic) Set (to) Setting Ship's chronometer Shock absorber Shockproof Sidereal day Silent Simple calendar (watch) Skeleton Skeleton movement Slide Smoky quartz Snailing Snap Snow setting Sodalite Solstice Souscription (watch) Specific gravity Spectroscope Spinel Split-seconds (chronograph) Split-seconds chronograph Spring Stamping Stamping press Steel Step motor Stippling (Spotting) Stone Stopwork Strap Striking mechanism Stud Subsidiary seconds Sunray brushing Sunrise and sunset Sweep seconds Swiss T 25 (T Swiss made) Sympathique Synthetic ruby (Scientific ruby) Synthetic stone
