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

approximately 55 hours of power reserve

index hour markers with Chromalight appliques

ornate dial has been made using an 18K yellow gold base plate with full or outlined butterflies

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

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