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The achievement that https://tinyurl.com/2z3x37ja link brought it to GPHG's attention is largely because the watch houses the first COSC-certified movement with a cylindrical balance spring, which required years of testing to achieve. But https://tinyurl.com/5dyav3cp link it completes a legacy, in a way, as Ferdinand https://zzb.bz/l5upeh link Berthoud himself worked on cylindrical balance springs and was known for his development of marine chronometers. https://is.gd/3AC9Qk https://is.gd/edAObb https://tinyurl.com/5n67vexb https://cse.google.fm/url?q=https://www.falskaklockor.org/sv-kategori/cartier/ https://cse.google.com.sv/url?q=https://www.podrobkizegarkow.pl/kategoria-pl/vacheron-constantin/ https://www.cajuncarolinaadventures.com/profile/gamalagnesb37650/profile
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