August 15, 2026Published by on August 15, 2026Categories Speedmaster ’57, steel on leather strap 41.5 mm, Co-Axial calibre 9300Silicon balance spring on free sprung-balance, 2 barrels mounted in series, automatic winding in both directions. Rhodium plated finish with exclusive Geneva waves in arabesque. Strap surface: Non-grained calf leather.
