Steel
44mm AISI 316L brushed steel case, see-through sapphire crystal back, polished bezel, brushed steel device...
44 mm AISI 316L polished steel case, polished steel bezel, black dial with luminous arabic...
44 mm polished steel case, 4.5 mm thick, sapphire back, brushed steel crown, polished steel...
45mm patina steel case, sapphire crystal back, patina steel bezel, black dial with luminous arabic...