IWC Ingenieur SL Automatic Jumbo Anti-magnetic Mens Watch 1832. Automatic self-winding movement. Amagnetic automatic calibre 8541ES with Pellaton winding mechanism, stop second and date display. IWC inhouse production (based on calibre 8541B) with collet of type Greiner spring, and part of lever made of special amagnetic alloys. Stainless steel case 40 mm in diameter. Amagnetic to 80,000 A/m, movement protected by Farraday's cage made of soft iron inner case and soft iron dial bottom. Scratch resistant anti-peflective sapphire crystal. Silver dial with luminous hands, index hour markers. Minute markers around outer rim. Date window at 3 o'clock aperture. Ingenieur- and SL-Logo at 6, applied IWC-Logo at 12 o'clock. Sweep centre seconds. Stainless steel bracelet with deployent buckle. Fits 8" wrist.