IWC. A Large Limited Edition Platinum Wristwatch with Regulator Dial Signed IWC, Schaffhausen, Portuguese Regulator Model, Ref. 5444, No. 313/500, Movement No. 2'672'493, Case No. 3'221'414, Circa 2008Cal. 98245 three quarter plate mechanical movement, 22 jewels, silvered matte dial, central minute hand and outer railway minute divisions, subsidiary dial at 12 o'clock for hours with applied Arabic numerals, subsidiary dial at 6 o'clock for constant seconds, circular case, sapphire crystal display back secured by six screws, platinum IWC buckle, case, dial, and movement signed43mm diam.