Seamaster 300 M Chrono Diver

Steel on steel 213.30.42.40.01.001

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Features

• DateThe day of the month, displayed in a window on a watch dial typically at the 3 o'clock or 6 o'clock position.
• ChronometerLabel given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
• ChronographComplicated watch with a function for measuring short time periods in addition to its function for permanently displaying hours, minutes and seconds.
• Small secondsA hand on a sub-dial which tracks seconds; typically it completes a full rotation in one minute.
• Helium escape valveDecompression system which allows helium to escape from inside the watch when the watch is worn for professional use in pressure chambers. (Long-term underwater work, crude oil exploration, etc.)
• Screw-in crownSelf-locking crown, screwed into the tube of the case, used for highly water resistant divers' watches.
• Unidirectional rotating bezelA bezel which turns in only one direction. Particularly useful for divers who cannot accidentally rotate it in the wrong direction, which could cause them to miscalculate their dive times. A rotating bezel makes it easy to measure elapsed time.

technical data

• Crystal

  Domed, scratch-resistant sapphire crystal with anti-reflective treatment inside

• Case

  Steel

• Dial

  Black

• Water resistance

  300 m (1000 feet)

• Size

  Gents
  Diameter: 41.5 mm

movement

Caliber: Omega 1164

Self-winding chronograph, chronometer movement with rhodium-plated finish

Power reserve: 44 hours