The deep blue sea. The water resistance rating of most chronograph watches is 100 meters or less and comes with the caveat that the chronograph function should not be used underwater. Other chronograph watches have greater water resistance ratings, up to 1000 m, but screw in pushers must be locked in order to achieve the stated water resistance rating.Either way it means that the chronopgraph function cannot be used underwater. The Omega User Manual warns:
"Chronograph push-pieces: do not operate chronograph pushers under water in order to prevent water entering the mechanism. Exception: The Seamaster 300 m and 600 m Chronographs have pushers which function under water."
Omega Seamaster 300 M Chrono Diver. The Seamaster 300 M Chrono Diver was the first commercial chronograph watch that could be used under water. It uses an Omega cal. 1164 movement, which is actually a Omega modified Valjoux 7750 movement. The self-winding Omega 1164 movement produces 28,800 vibrations per hour and has a 44 hour power reserve. The watch has a 300 m. water resistance rating, with the chronograph functions being functional underwater.
The Seamaster 300 M Chrono Diver is a typical chronograph except for the arrangement of the dial which has the sub-dials at the 6-9-12 position as opposed to the more traditional 3-6-9 positions. The main seconds hand is used for the chronograph function, continuous second being kept by sub-dial at the 9 o'clock position. The 30 minute timer and 12 hour time are found at the 12 o'clock and 6 o'clock positions, respectively. Date is displayed at the 3 o'clock position.
This watch is just 41.5 mm wide, but it is substantially thicker than most diver watches of the same size. You don't really have much of a choice of styles, the blue bezel and dial version pictured above being the only available choice.
This watch has not yet been moved to Omega's newer movement with the Co-Axial Escapement, which leads us to believe it may be near end of life.
Omega Planet Ocean Chrono. The Planet Ocean is Omega's newer line of divers watches bringing into the picture a 600 m. water resistance rating, or double that of its Seamaster Professional counterparts.
It uses a self-winding Omega cal. 3313 movement, which is actually a Omega modified Piguet. The Omega 3313 is one of Omega's older Co-Axial movements producing 28,800 vibrations per hour (vph) as opposed to the 25,200 produced by newer Omega Co-Axial movements. I suspect to many, the 28,800 vph movement would be the preferred choice. It has a 52 hour power reserve.
The Planet Ocean Chrono is a typical chronograph with the sub-dials at the traditional 3-6-9 positions. The main seconds hand is used for the chronograph function, continuous second being kept by sub-dial at the 9 o'clock position. The 30 minute timer and 12 hour time are found at the 3 o'clock and 6 o'clock positions, respectively. Date is displayed at the 4 o'clock position.
This is a big watch with a 45.5 mm case diameter. The Planet Ocean Chrono is available in a a variety of styles, with a steel or red gold cases, with matching steel or red gold bracelets. It also come with a choice of leather and rubber straps.
About Omega SA. The forerunner of Omega was founded 1848, by Louis Brandt. The name Omega was first used in 1894. It was used as the name of one of the Louis Brandt brother’s watch movement calibers.
"Chronograph push-pieces: do not operate chronograph pushers under water in order to prevent water entering the mechanism. Exception: The Seamaster 300 m and 600 m Chronographs have pushers which function under water."
Omega Seamaster 300 M Chrono Diver. The Seamaster 300 M Chrono Diver was the first commercial chronograph watch that could be used under water. It uses an Omega cal. 1164 movement, which is actually a Omega modified Valjoux 7750 movement. The self-winding Omega 1164 movement produces 28,800 vibrations per hour and has a 44 hour power reserve. The watch has a 300 m. water resistance rating, with the chronograph functions being functional underwater.
The Seamaster 300 M Chrono Diver is a typical chronograph except for the arrangement of the dial which has the sub-dials at the 6-9-12 position as opposed to the more traditional 3-6-9 positions. The main seconds hand is used for the chronograph function, continuous second being kept by sub-dial at the 9 o'clock position. The 30 minute timer and 12 hour time are found at the 12 o'clock and 6 o'clock positions, respectively. Date is displayed at the 3 o'clock position.
This watch is just 41.5 mm wide, but it is substantially thicker than most diver watches of the same size. You don't really have much of a choice of styles, the blue bezel and dial version pictured above being the only available choice.
This watch has not yet been moved to Omega's newer movement with the Co-Axial Escapement, which leads us to believe it may be near end of life.
Omega Planet Ocean Chrono. The Planet Ocean is Omega's newer line of divers watches bringing into the picture a 600 m. water resistance rating, or double that of its Seamaster Professional counterparts.
It uses a self-winding Omega cal. 3313 movement, which is actually a Omega modified Piguet. The Omega 3313 is one of Omega's older Co-Axial movements producing 28,800 vibrations per hour (vph) as opposed to the 25,200 produced by newer Omega Co-Axial movements. I suspect to many, the 28,800 vph movement would be the preferred choice. It has a 52 hour power reserve.
The Planet Ocean Chrono is a typical chronograph with the sub-dials at the traditional 3-6-9 positions. The main seconds hand is used for the chronograph function, continuous second being kept by sub-dial at the 9 o'clock position. The 30 minute timer and 12 hour time are found at the 3 o'clock and 6 o'clock positions, respectively. Date is displayed at the 4 o'clock position.
This is a big watch with a 45.5 mm case diameter. The Planet Ocean Chrono is available in a a variety of styles, with a steel or red gold cases, with matching steel or red gold bracelets. It also come with a choice of leather and rubber straps.
About Omega SA. The forerunner of Omega was founded 1848, by Louis Brandt. The name Omega was first used in 1894. It was used as the name of one of the Louis Brandt brother’s watch movement calibers.
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