The Citizen Promaster eco drive sports watch is one of the best, if not the best, air divers sports watch, with waterproof watch band and several sporty and serviceable styles.

The Citizen Professional Diver, for instance, part of the Promaster eco drive sports watch family, is water resistant to 1000 feet, or well over 200m. The ideal air divers watch for mixed gas dives, it has a curved, non-reflective 6 mm crystal. With a urethane band and stainless steel watch casing this Citizen promaster eco drive sports watch is available for $375. A stainless steel watch band brings the price to $450, while the top of the line titanium case and reinforced watch band made of urethane retails online for 4575.

This Citizen Promaster eco drive sports watch has durable quartz movement, oversized hands and markers that are luminous, a ratcheted bezel with elapsed time feature and a six month reserve of power as part of its eco drive system.

Whether your choice of air divers watch band is urethane, or other waterproof material you'll have a case with a screw backing, a crown that can be screwed down, water resistance to 200-300m, and a wet suit extender feature on the models with the urethane watch bands.

These Citizen Promaster air divers watches are very large eco drive sports watches, with a diameter of 46 millimeters for the case, and a thickness of 18 millimeters. You can also order a travel case for your Citizen Promaster eco drive sports watch. This carrying case is padded and zippered to protect your purple prized air divers Citizens watch.