Years: ~1953–1957

Case: 34 mm Bubbleback transitioning to Oystercase, acrylic crystal, drilled lugs, 100 m WR

Movement: Caliber 1030 auto (25 jewels, 18,000 vph), first in-house Oyster Perpetual movement

Dial: “SUPER PRECISION” with spear-style indices and early Explorer 3–6–9 numerals; applied crown

Notes: Established enduring Air‑King script, first true automatic Air‑King