Steel, polished, domed sapphire glass, screwed-in case back
foldover clasp in steel
black, numerals, markers and hands with luminous material
mechanical with self-winding, Panerai caliber OP III (base Valjoux 7750), 21 jewels, 28 800 A/h, 42-hour power reserve, officially certified chronometer C.O.S.C.
hours, minutes, small second, date, power reserve
water-protected till 30 atm