Ball Engineer M Marvelight (43mm) - NM2128C-S1C-BK Diagonal approximately 55 hours of power

approximately 55 hours of power reserve

blue alligator strap

35 mm brushed stainless steel and 18K red gold case

black lacquer dial with 18K white gold hour markers and hands

unidirectional rotatable 18K yellow gold bezel with black Cerachrom insert and gold coated numerals and graduations

Ball Engineer M Marvelight (43mm) - NM2128C-S1C-BK Diagonal approximately 55 hours of powerFEATURES Movement _ Automatic BALL Manufacture caliber RRM7309 C _ COSC certified chronometer _ 80 hours power reserve, 28,800vph Function _ 15 micro gas tubes on dial and hands for night reading capability _ Hours, minutes, second and date Water resistance _ 100m 330ft Antimagnetic _ 4,800A m Case _ Stainless steel _ 43mm, height 13. 4mm _ Anti reflective sapphire crystal _ Sapphire crystal transparent case back _ Screwed in crown _ Amortiser