Limited Edition of 1999 Pieces. Oris Watch Aquis Lake Baikal Limited Edition 01 733 7730 4175-Set. Oris’ commitment to protecting our world’s oceans and rivers continues with this Oris Aquis Lake Baikal Limited Edition watch. Lake Baikal sits on the Siberian border, north of Mongolia, and is one of the world’s deepest and oldest freshwater lakes. It holds more than 20% of the world’s unfrozen fresh surface water reserves and is considered the seventh largest lake on the planet. It used to be one of the clearest bodies of water in the world before increased industrial activity and unregulated tourism effected its clarity. In order to support the Point No. 1 conservation project, run by the Scientific Research Institute of Biology at Irkutsk State University, Oris have partnered up with the Lake Baikal Foundation and unveiled this stunning Oris Aquis Lake Baikal Limited Edition watch. It’s breathtaking icy blue-grey gradient dial resembles the lake’s own legendary crispness while the unique case back includes a special Lake Baikal insert which depicts the water when frozen. The case back is also detailed with the watch’s unique limited edition number and special engravings to honour the edition. The 43.5mm stainless steel case provides all the necessary technologies for shallow diving including an integrated bracelet, screw in crown and blue ceramic unidirectional bezel with 60 minute scale. Hidden beneath the scratch resistant sapphire crystal glass and ocean blue dial, the Oris 733 automatic winding movement is hard at work powering the central hands for hours, minutes and seconds and date window at 6 o clock. The functions are beautifully highlighted by rhodium-plated hands filled with Super-LumiNova for easy legibility in the dark – or under the waves.