Omega Seamaster Aqua Terra ref. 220.10.41.21.03.001 represents one of the most recent transformations of the series which took place in 2017 during the Aqua Terra’s 15th anniversary. The vertical teak-concept dial was swapped for a horizontal orientation and the 8800 and 8900 movements were introduced. Ref. 220.10.41.21.03.001 is the wildly popular stainless steel and blue dial variant featuring a 41mm stainless steel case and a sun-brushed teak dial decorated with the date and rhodium-plated hands and indices filled with Super-LumiNova. Inside the case the caliber 8900 is hard at work featuring the coveted distinction of a Master Chronometer anti-magnetism up to 15 000 gauss and a 60-hour power reserve.