Ball Engineer Master II Aviator - NM1080C-L13-BK steel-and-gold The hallmark Oyster architecture guarantees

The hallmark Oyster architecture guarantees exceptional durability while maintaining a refined presence on the wrist

Automatic caliber BALL RR1801

Stainless steel case back

Crafted from lustrous 18kt Everose gold

unidirectional rotating black cermaic bezel with Liquidmetal diving scale

Ball Engineer Master II Aviator - NM1080C-L13-BK steel-and-gold The hallmark Oyster architecture guaranteesWEIGHT Approx. 150g MOVEMENT Automatic caliber BALL RR1102 SIZE (CASE) 46mm, height 13. 3mm WATER RESISTANCE 100m 330ft ANTI MAGNETISM 4,800A m MICRO GAS TUBES 15 micro gas tubes on hour, minute and second hands and dial for night reading capability FUNCTIONS Hours, minutes, sweep seconds, day and date 5,000Gs shock resistance CASE MATERIAL Stainless steel CROWN Screwed in crown CRYSTAL Anti reflective sapphire crystal DIAL COLOR Black BRACELET Brown