Ball Engineer M Marvelight (43mm) - NM2128C-S1C-BK Diagonal unidirectional rotatable 18K yellow gold

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

18k white gold domed bezel set with 24 diamonds

blue alligator strap

screw-down back and push buttons

35 mm brushed stainless steel and 18K red gold case

Ball Engineer M Marvelight (43mm) - NM2128C-S1C-BK Diagonal unidirectional rotatable 18K yellow goldFEATURES 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