IWCさんのインスタグラム写真 - (IWCInstagram)「A timepiece as ingenious and innovative as its wearer. Featuring the #IWCPilot’s Watch Double Chronograph Top Gun Ceratanium (Ref. IW371815). Ceratanium® was developed by IWC and combines the advantages of titanium and ceramic in a single material. Based on a titanium alloy, the patented material is as light and rigid as titanium itself but at the same time as hard, wear-free and scratch-resistant as ceramic. The Double Chronograph features an integrated split-seconds function that enables the watch to time two separate actions simultaneously. Its power is supplied by the 79420-calibre movement with automatic winding and a 44-hour power reserve. #IWCTopGun」2月17日 23時00分