Sinn Watch 356 Sa Pilot III. 356.0721 Aligator Leather Black Sinn watches are renowned for their aviation inspired designs, and this Sinn 356 Sa Pilot III watch continues this tradition by bringing to life an aesthetic reminiscent of cockpit navigation clocks and their rapid and clear readability. The satinized stainless steel case embraces the SW 500 self winding movement with hours, minutes and subsidiary seconds function, day and date display and chronograph function. The automatic mechanism also boasts 25 bearing jewels, 28,800 semi oscillations per hour and shock and anti magnetic resistance. Housed beneath the scratch resistant sapphire crystal glass with antireflective treatment is a striking electroplated silver guilloche dial which features, like most Sinn watches, numerals, indices and hands coated in luminescence for easy legibility even at night. This Sinn 356 Sa Pilot III watch is completed by a classic black leather strap and stainless steel buckle for effortless wear and comfort.