1940s steel vintage Rolex Oyster ‘Bubbleback’ watch (3986)
An early steel vintage Rolex Oyster ‘Bubbleback’ Perpetual watch. The case measures 32mm, excluding Rolex Oyster winding crown. The case is signed Brevetee, Rolex SA, Geneve-Suisse, with reference 2941. The calibre 630 automatic movement is signed Rolex Perpetual Chronometer, Swiss Made, Super Balance with 17 jewels. The white dial has luminous Arabic numerals, with luminous steel hands and red centre sweep seconds hand. The dial is signed Rolex Oyster Perpetual above the centre.
The ‘Bubble Back’ was the first completely watertight automatic watch developed by Rolex. It was named the ‘Oyster Perpetual’. The rounded case back was made to house the self-winding movement rather than the original Oyster case. This gave the name the’Bubble Back’. Rolex only produced this watch from 1933 – 1955.