ETA SA STP1-11

The STP1-11 is an automatic movement manufactured by Swiss Technology Production (ETA SA). Based on the ETA 2824-2, it measures 25.6mm in diameter and operates at 28,800 vph with 26 jewels and Incabloc shock protection. The movement was modified specifically for the Meraud Bonaire brand to create a no-date version, removing all date components and reducing crown positions to two—winding and time-setting. Production has been discontinued.