Almost everything about the BN2041-81L Citizen Promaster Sea watch deepwater titan blue is optimized for diving. Large hour dots and hands with illuminants for places where no sunlight reaches. A sensor that reports the respective pressure conditions to the calibratable depth gauge. An adjustable ascent alarm that emits a warning tone when the ascent rate exceeds 9 m per minute. An additional orange hand for setting the rotating bezel for the intended dive time. Power reserve indicator on the 9. pressure resistant to 200 m water depth. On the other hand, the BN2041-81L Citizen Promaster Sea watch deepwater titanium blue has a date display on the 3 and a case and bracelet made of a special titanium alloy exclusive to Citizen watches. The Eco-Drive, Citizen's solar power supply, completes the picture of a diver's watch that can be used anywhere and is at home in any element. Its sporty appearance inspires not only its owner, whether in the diving club, on the yacht, in the sports car or in the sports plane.