**R8999** Invicta Men's 1680 Specialty Chronograph Black Textured Dial Black Polyurethane Watch

10 meters (33 feet): The watch can withstand rain and splashes of water, such as car washing and showering, but should not be worn swimming.

30 meters (99 feet): The watch can withstand rain, splashes of water, and short recreational swimming.

50 meters (165 feet): The watch is suitable for swimming and high altitude sports, such as skiing and parachuting.

100 meters (333 feet): The watch is suitable for snorkeling and swimming.

150 meters (500 feet): The watch is suitable for snorkeling and swimming.

200 meters (660 feet): The watch is suitable for recreational scuba diving.

300 meters (984 feet): The watch is suitable for scuba diving to a depth of 30 meters for up to two hours.

500 meters (1,640 feet): The watch is suitable for scuba diving to a depth of 50 meters for up to two hours.

1,000 meters (3,280 feet): The watch is suitable for deep sea diving.

2,000 meters (6,562 feet): The watch is suitable for professional deep sea divers, and is able to withstand substantial pressure from the surrounding water.

Bidirectional: A bezel that rotates both clockwise and counterclockwise. It may have printed or engraved markers, numbers, or directional markers.

Interchangable: A bezel that can be removed and replaced by another bezel. In most cases, a watch with an interchangeable bezel comes as a set.

Slide-Rule: A rotating bezel that is printed or engraved with a logarithmic scale, metric scale, or other scales. It is used with fixed mathematical rules, allowing the wearer to perform directional/navigational or mathematical calculations.

Stationary: A bezel that does not rotate.

Tachymeter (or Tachometer): A bezel that allows the wearer to calculate speed based on travel time over a fixed distance traveled. For this reason, most tachymeter bezels will have markings or scales printed or engraved on the surface.

Unidirectional: A bezel that rotates one way. Most unidirectional bezels rotate counterclockwise. In many dive watches, it is used to measure elapsed time spent underwater.