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A fresh addition for the men's Baume & Mercier Riviera watch collection for 2009 is an elegantly sporty selfwinding model with date. The new Baume & Mercier Riviera Magnum XXL Automatic watch features a boldly sized 45mm case in brushed stainless steel distinguished by smoothly integrated crown protectors. Classically inspired yet casual, the black dial displays luminous Roman numeral hour markers, and polished skeleton hour hands. A semicircular window at 3 o'clock shows the date. Powering the Baume & Mercier Riviera Magnum XXL Automatic watch is the ETA 2892A2 caliber, a selfwinding mechanical movement which has established a long and enviable track record for both reliability and timekeeping precision. Frequency of the smooth glucydur balance is 28,800 vibrations per hour, and power reserve is 42 hours. The caliber mainplate is adorned with circular graining, while bridges and central rotor are decorated with an elegant Cotes de Geneve pattern. The Baume & Mercier Riviera Magnum XXL Automatic watch is fitted with a flat sapphire crystal, and a rubber strap with a stainless steel security buckle. Crown and caseback both screw down, assuring water resistance to 200 meters. Zenith El Primero The well-known El Primero movements heralded the era in the selfwinding chronograph according to a unique principle in 1969. The El Primero can be a typical built-in chronograph motion with columnwheel management and ballbearingmounted central rotor. For your range of many years, it had been the one mechanical chronograph motion able to measuring brief occasions to in 1 10th of the 2nd; as a way to achive this stage of accuracy, Zenith doubled the oscillating frequency from the equilibrium to achieve 36,six hundred vibrations for each hour. The El Primero motion has become again from the limelight recently, successfully powering Zenith's most recent collections. It's been mixed with different issues, like a tourbillon, and it's also observed in chronographs made by other manufacturers inside the LVMH team to which Zenith belongs. replcia breitling Caliber eleven Stemming from cooperation involving replcia breitling , Buren and HeuerLeonidas, the Caliber eleven (in accordance to your replcia breitling reference) would be the other “first"selfwinding chronograph movements introduced the exact same calendar year as being the El Primero. Nevertheless, Caliber eleven is according to a really unique building from that of its rival. Its design and style engineers opted for your modular program during which the impartial chronograph mechanism is extra towards the foundation movements. This chronograph's “control center"is a cam syste that's much easier to develop plus much more cost-effective than a columnwheel mechanism. Caliber eleven can be distinguished by its offcentered microrotor. It's the forerunner of most selfwinding chronograph actions employed these days.