IWC reference 3711 Double Chronograph, with domed sapphire crystal. A nice example of the Habring-designed IWC Rattrapante chronograph. Watch has all-original tritum dial and hands, plus the original screw-down crown with its fish logo. Serial number dates the watch to a 1992-1993 production date. A Full service was performed by an independent watchmaker while in my possession in 2016, plus a recent look- over and regulation in 2020. Hacking automatic movement may be wound manually as well. The Start/stop/split/rattrapante and full reset functions all work flawlessly - It’s a fascinating complication. Dial is perfect with the tritium lume showing a nicely aged ivory color and a decidedly military look overall. Case is in very nice condition and has all factory finished surfaces, and shows light wear. See photos. Steel dust/anti magnetic cover. English Day wheel. The domed sapphire crystal is unique to the 3711, and is in excellent shape with no chips or scratches. Fitted with a padded chestnut colored aftermarket strap and buckle with minor wear as shown. Original IWC branded black alligator strap and IWC buckle showing some wear is also included. This watch is offered at $4250 USD, with insured shipping within the USA at my cost. Shipment to Ex-USA locations can be discussed. Payment method preferred is Paypal F&F, with other methods as mutually agreed to Feedback from transactions here at OF: https://omegaforums.net/threads/flatfoot-is-top-seller.106766/ https://omegaforums.net/threads/great-transaction-with-seller-flatfoot.106642/ https://omegaforums.net/threads/flatfoot-is-an-excellent-trading-partner.100676/ https://omegaforums.net/threads/flatfoot-pleasure-to-sell-to.90257/ https://omegaforums.net/threads/flatfoot-great-buyer.114753/ Thanks to OF for the space.