Seamaster Aqua Terra 150M Master Chronometer 41mm in Steel-220.13.41.21.03.002-on Blue Alligator Leather Strap with Blue Stick DialLouis Brandt founded Omegas predecessor La Generale Watch Co. in 1848. Operating out of La ChauxdeFonds Switzerland the company grew to reach markets across Europe. Brandts sons expanded the business moving to a larger facility in Biel in 1880. IAll of Omegas current movements are certified by the Official Swiss Chronometer Testing Institute COSC. This certification ensures mean accuracy of minus four to plus six seconds deviation per day in a number of conditions and positions. Despite the impressive commitment to accuracy evidenced by this stringent testing Omega further certifies the majority of its current watches with eight tests set by the Swiss Federal Institute of Metrology METAS. The tests ensure precision requiring a zero to plus five six or seven seconds mean deviation per day magnetic resistance which is aided by use of Omegas use silicon in the watch escapement the veracity of the stated power reserve and water resistance. Watches which pass these stringent tests bear a Master Chronometer certification. The companys product line is composed of four main categories the Constellation Seamaster Speedmaster and De Ville. Within these classifications exist collections and subcollections. The Constellation is available in both masculine and feminine variations several metals and multiple case sizes. The watch is sporty while maintaining its elegance featuring an integrated bracelet or strap and a distinctive bezel marked by Roman numerals. The Constellations design also includes four signature horizontal claws at the height of the crown and a semicircular faceted case. The Globemaster is also highly recognizable owing to its fluted bezel and unique piepan dial. Additionally the Globemaster features luminescent hands and markers. The watch is available in a 39 millimeter time and date only configuration and a 41 millimeter annual calendar variant. The Seamaster Collection consists of several subcollections each iconic in its own way. The 300 Professional was made famous by the James Bond movies. The design is easily identifiable due to its wavemotif dial helium escape valve at ten oclock and round indexes. The Seamaster Heritage is closer to the Seamasters original design with Arabic numerals at twelve nine six and three. The Seamaster Aqua Terra is typically water resistant to 150 meters many watches under the Aqua Terra