1930s steel vintage Rolex Oyster Bubbleback watch (3852)
An early steel vintage Rolex Oyster ‘Bubbleback’ Perpetual watch, dated 1939. The case measures 32mm, excluding Rolex Oyster winding crown. The case is signed SAR, Brevette, Suisse, France, Angleterre, USA, Allemagne etc. The calibre 630 automatic movement is signed Rolex Perpetual, Swiss Made, with 17 jewels and numbered. The dial has alternate raised gilt Arabic numerals, outside minute track hands and centre sweep seconds. The dial is signed Rolex Oyster Perpetual above the centre with Chronometer below.
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.