Anti‑magnetic ANTI-MAGNETIC The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss). Chronometer Date Master Chronometer Certified Time zone function Transparent caseback Between lugs: 20 mm Lug‑to‑lug: 49.9 mm Thickness: 12.5 mm Case diameter: 41 mm Case: Steel Water resistance: 10 bar (100 metres / 330 feet) Total product weight (approx.): 84 g Dial colour: Silver Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides Strap type: Leather strap Strap color: Black Strap surface: Alligator leather Strap underside: Non‑grained calf leather Buckle type: Foldover clasp