Soar like the best with the Katherine—the watch that means business, with a touch of sophistication. Features include a genuine Mother-of-Pearl dial and patent-pending ALPHABezel to help you remember ATIS when you fly or any other letter-based information. MOVEMENT Miyota FS20 Japanese quartz 60 Minute stopwatch Military time Date function 5 Hand DIAL & CRYSTAL Genuine Mother-of-Pearl dial Bi-Directional ATIS Alpha-Bezel inner bezel Super-Luminova index and hands Sapphire crystal CASE Case Size - 40mm Case Size - 48mm lug to lug Case Thickness - 13.50mm Case Material - Stainless steel case and crown Screw down stainless steel case back Water Resistance - 165ft (5 ATM) 2 Non-Screw locked double gasket crowns BAND 20mm Genuine leather band/stainless steel band Maximum inside circumference at first hole (leather) = 9 inches Maximum inside circumference with closed clasp (steel) = 9.5 inches Diver's buckle (Steel) 16 Removable links Quick release spring bars