Planet Ocean 600M Omega Co‑Axial Master Chronometer Chronograph 45.5 mm Deep Black
Black ceramic on rubber strap

Description
In this remarkable 45.5 mm divers’ chronograph, the casebody has been crafted from a single block of ceramic, while orange rubber has been blended with ceramic to create a unique unidirectional bezel. This blend covers the first 15 minutes, with Liquidmetal™ completing the rest of the diving scale. Orange rubber has also been used on the brushed pushers.
The black ceramic dial includes 18K white gold hands and indexes. OMEGA has also created an oriented caseback through its patented NAIAD LOCK system so that the engraved wording sits pleasingly in position.
The watch sits on a black rubber strap with orange stitching and an anti-bacterial treatment. It is driven by the OMEGA Master Chronometer Calibre 9900. To achieve Master Chronometer status, it has passed the 8 rigorous tests set by METAS (The Swiss Federal Institute of Metrology).
5-Year Warranty
All OMEGA watches are delivered with a 5-year warranty that covers the repair of any material or manufacturing defects. Please refer to the operating instructions for specific information about the warranty conditions and restrictions.
Features
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Anti-magnetic
The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
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Chronograph
Complicated watch with a function for measuring short time periods in addition to its function for permanently displaying hours, minutes and seconds.
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Chronometer
Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
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Date
The day of the month, displayed in a window on a watch dial typically at the 3 o'clock or 6 o'clock position.
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Helium escape valve
Decompression 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.)
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Liquidmetal™
Liquidmetal is an alloy which is considerably harder than stainless steel yet bonds seamlessly with ceramics. The blended materials are particularly resistant to scratching and corrosion.
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Screw-in crown
Self-locking crown, screwed into the tube of the case, used for highly water resistant divers' watches.
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Small seconds
A hand on a sub-dial which tracks seconds typically it completes a full rotation in one minute.
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Transparent case back
A transparent case back - frequently made of sapphire - makes it possible to see the movement inside the watch. -
Unidirectional rotating bezel
A 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
- Between lugs: 22 mm
- Bracelet: rubber strap
- Case: Black ceramic
- Case diameter: 45.5 mm
- Dial colour: Black
- Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
- Water resistance: 60 bar (600 metres / 2000 feet)
The advantages of this Master Chronometer watch
Behind the elegance of every Master Chronometer timepiece is the highest level of testing: 8 tests over 10 days, to ensure superior precision and anti‑magnetic resistance. We’ve raised our standards. You can too.
A new look for your watch
Your watch and strap should go together perfectly, but that doesn't mean you can't experiment with different combinations. Why not mix things up and see what happens? You may discover a look that's as individual as you are.


CALIBER OMEGA 9900

Self-winding chronograph with column wheel and Co-Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Silicon balance-spring, 2 barrels mounted in series, time zone function. Central hour, minute and chronograph seconds hands, small seconds hand, 12-hour and 60-minute recorders. Rhodium plated finish with Geneva waves in arabesque.
- 60 hours
- Self winding

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