A luxurious turn on the classic dive watch format, the Rolex Submariner Date reference 16618 translates the model's tool-watch identity into 18K yellow gold with notable ease. This example pairs a blue dial with a 40mm yellow gold case and matching bracelet, giving the watch a distinctly rich, period character. Its automatic movement keeps the layout focused around a practical date display rather than added complexity. At 13mm thick, it retains the balanced, substantial proportions collectors expect from a Submariner.