ETA SA NORKUS-LN1

The LN1 is a manual-winding movement manufactured by ETA SA, based on the Seagull ST3600 with significant custom modifications. It features Incabloc shock protection and powers the LN1 Regulator, the debut timepiece from independent watchmaker Liudas Norkus. The movement includes a skeletonized mainspring barrel with a circular brushed finish and a visible winding mechanism at 5 o'clock. Introduced in January 2025, the modified base transcends its Seagull origins though sourcing replacement parts may prove more challenging than ETA alternatives.