Seamaster Aqua Terra Annual Calendar

Steel on steel 231.10.43.22.06.001

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Features

• Annual calendarWatch which automatically recognizes months with 30 and 31 days and needs to be manually corrected only once a year, on the first of March.
• ChronometerLabel given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
• DateThe day of the month, displayed in a window on a watch dial typically at the 3 o'clock or 6 o'clock position.
• Screw-in crownSelf-locking crown, screwed into the tube of the case, used for highly water resistant divers' watches.
• Transparent case backA transparent case back - frequently made of sapphire - makes it possible to see the movement inside the watch.

technical data

• Crystal

  Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides

• Case

  Steel

• Dial

  Teak-grey

• Water resistance

  150 m (500 feet)

• Size

  Gents
  Case Diameter: 43 mm

movement

Caliber: Omega 8601

Self-winding movement with Co-Axial Escapement for greater precision stability and durability. Annual calendar with instantaneous jump. Silicon balance-spring on free sprung-balance, 2 barrels mounted in series, automatic winding in both directions to reduce winding time. Rhodium plated finish with exclusive Geneva waves in arabesque.

Power reserve: 55 hours