Stainless steel manual-winding round-shaped large gentleman’s wristwatch water-resistant with sapphire-crystal case-back screwed by six screws light-grey and silver opaline colour dial with radial Roman and Arabic numerals centre-seconds with two horological complications: • Two separate time displays each driven by its own barrel and gear train with its own escapement and balance • Equation of the two time zones on a 24-hour basis (subsidiary dial at 12 o’clock).