The attractive game played by Turbine watches has also been applied to models measuring 48 mm in diameter. The Turbine XL interpretations feature several remarkable character traits, including finely honed and oblique-cut turbine blades, a case-middle structure extending onto the bezel, and lugs reinforced by central inserts. TURBINE XL P-331 / In-house caliber Collection specifications Movement Mechanical automatic P-331 / In-house caliber Function Central hands indicating hours, minutes and seconds Vibrations per hour 28,800 (4 Hz) Autonomy in hours ( fully wound up) 42 hours Number of rubies 25 jewels Case Case Ø 48 mm Case thickness 14.30 mm Crystal Glareproofed sapphire crystal on both sides Caseback See-through caseback Water-resistance 5 ATM Bracelet Buckle Pin buckle Width of strap ( lugs / buckle ) 28 / 24 mm Other feature Turbine on the dial side * PVD (Physical Vapor Deposition) coating The PVD coating used by Perrelet is a high technology coating made by ion bombardment in vacuum. It is a 2-micron thick layer of carbon that has a very high wear resistance and antifriction coefficient. Its hardness offers at the same time a silky aspect particularly adapted to the Perrelet product line. 48 | TRADE CATALOGUE 2014 - 2015
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