Ball Engineer Master II Aviator - NM1080C-S13-BK 23.6 Patented crown protection design

Patented crown protection design

retrograde second time zone at 10 o'clock

folding Oysterclasp buckle with glidelock extension system

fluted steel crown set with a synthetic cabochon-shaped spinel

Silver-tone stainless steel case with a silver-tone stainless steel rolex oyster bracelet

Ball Engineer Master II Aviator - NM1080C-S13-BK 23.6 Patented crown protection designWEIGHT 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