Model: Ingenieur Double Chronograph Rattrapante. Crown: Screw-down, with rubber knurled edge and protective shoulders, original IWC. Dial: Silvered, with raised, burnished steel bar indexes treated with luminescent material, burnished steel pencil hands with luminescent coating, running seconds at 9 o'clock, chronograph minutes at 12 o'clock, chronograph hours at 12 o'clock.
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