Our modules. Our complications.
Our own bespoke modules, built on Swiss and Japanese automatic calibres, make possible a 29.5-day true moonphase, regulator and jumping-hour displays. Designed in the UK around the Golden Ratio.
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From the journal
Stories, ideas and perspectives from our world.
Featured in Oracle Time: Loresum Named Among the "Best Independent Watches of 2026"
香港遺美Hong Kong Reminiscence features Loresum x Crown Hour Moonlight Lion Rock Limited Edition
易時Horoverse features Loresum x Crown Hour Moonlight Lion Rock Limited Edition
Moon Landing 55th LE featured by WatchTime Germany
WatchIt 2026 | The Watches That Impressed Me The Most
Designed in the UK
Loresum was created around a simple belief: true beauty lies in perfect proportion. Guided by the harmony of the Golden Ratio, designer Jason Chan crafts mechanical watches that balance vintage elegance with imaginative complications. From poetic moon phases to jumping hours, regulators, and wandering moons, each watch is designed to celebrate both the art of timekeeping and the beauty of nature.
