Panerai Radiomir Platinum Tourbillon GMT 48mm Limited Edition Functions: Hours, Minutes, Seconds, Second Time Zone, Power Reserve indicator (on back), 24-hour indicator, Tourbillon (30-second rotation with blue indicator on seconds dial) Movement: hand-wound mechanical, Panerai Calibre P.2005, completely manufactured by Panerai, 16¼ lignes, 9.1 mm thick, 31 jewels, 6 day power reserve, three spring barrels, Glucydur balance, 28,800 alternations/hour (4Hz). KIF Parechoc anti-shock device. Functions: hours, minutes, seconds, second time zone, power reserve indicator on the back, 24h indicator, Tourbillon. Case: diameter 48 mm, brushed titanium or platinum with removable wire loop strap attachments (patented). Bezel: polished titanium or platinum. Back: see-through sapphire crystal. Crystal: sapphire, made from corundum, 1.9 mm thick. Anti-reflective coating. Water-resistance: 10 bar (~100 metres).