Unit of measure to indicate a watch's water-resistance, specifically its capacity to resist pressure, based on standard atmospheric pressure defined as 101.325 kilopascals (kPa) equivalent to approximately 1 bar.
Can be expressed in different ways: 10 atm = 10 bars = 100 metres
Terms with the same letter
À tact watch A toc watch Accutron Agate Age of the moon Alarm All-or-nothing piece Alloy Amagnetic Amplitude Analogue Annual Calendar Annual calendar (watch) Anti-magnetic Aperture Applied chapter (Applique) Arabic numerals Arbor Argand burner Art Deco Assemble Assembly Assortiment Asterism Asthmometer Atm (atmosphere) Atmos Atomic (clock) Atomic clock Atomic second Automatic (Self-winding) Autonomy Autoquartz Axle
