We are an authorised retailer for Armin Strom in the United Kingdom GRAVITY EQUAL FORCE ULTIMATE SAPPHIRE LIMITED EDITION OF 25 The Gravity Equal Force is the world’s first automatic watch with constant force transmission. The result is consistent power delivery to the balance which ensures that the watch always delivers flawlessly constant precision. With its off-center grey-toned sapphire dial, the strikingly cool monochrome watch offers an extraordinary view of the exquisitely-finished manufacture movement. As a demonstration of his commitment to the System 78 collection, co-founder and head-watchmaker Claude Greisler insisted on adding a stop-work declutch mechanism to an automatic winding movement for the very first time in horological history. The history of watchmaking has seen many solutions developed to address this problem, but none have ever been applied to a watch even remotely close in price to that of the Gravity Equal Force. In keeping with the mission of the System 78 collection to democratize access to haute horology timepieces, the extraordinary value proposition of this watch extends to the exceptional hand-finishing of its movement. The Gravity Equal Force fully embodies a core Armin Strom principle: to relentlessly innovate and thereby secure a new place in horological history with every timepiece that we develop, regardless of ultimate price point. Limited to just 25 pieces per dial colour, the Sahara Sands edition of the Antarctique Passage de Drake draws its inspiration from the vast beauty of the desert. The 40.5mm stainless steel case features an integrated bracelet and frames Czapek’s exclusive "Stairway to Eternity" dial, offered in either warm salmon or deep blue. All our watch warranties are dated from date of purchase unless stated otherwise All listed watches can be viewed on request our boutique in London Mayfair VAT Free Shipments For items sent outside the UK: If product is sent outside the UK, then we can sell it without VAT. Please be aware that customers are responsible for all importing taxes and/or duties payable in the destination country. New watches are supplied with 2 to 5-year warranty programme (depending on the brand). Our complete profile is available on our Chrono24 section under MORE ABOUT SELLER, LEGAL NOTICE