This is a mid-1940s Rolex Oyster Bubble Back Ref. 2940 in stainless steel, featuring a rare luminous Roman numeral dial. Roman indices are uncommon for this era, when Arabic numerals were far more typical. The distinctive typeface—combined with the beautifully aged patina—gives the watch a highly original and characterful appearance.
The two-piece case, with the bezel integrated into the middle case, has a solid and robust construction. Despite its compact 31mm size, it carries the characteristic presence of a Bubble Back, powered by an automatic movement.