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Two years after Horological Machine N°9 “Flow” Air edition and Road edition conquered land and sky, HM9 SV takes us to the depths of the ocean — the last realm on Earth that still holds a wealth of untold secrets. An outer hull of sapphire crystal, curved and bubbled and precisely fitted together in two parts, sealed with a high-tech three-dimensional joint using a proprietary MB&F process. Two cantilevered balances, channelling data into a planetary differential that turns two heartbeats into one cohere
