Rolex Submariner Date 18k Gold Men's Watch Black Dial 16618 Rolex Submariner 18k Gold Men's Watch Black Dial 16618 - Automatic winding, 31 jewels, Quickset, sapphire crystal. 18k yellow gold case with rotating bezel with black insert (40mm diameter). Black dial with luminous style markers. 18k yellow gold Oyster bracelet. Pre-owned with box and books