'Bubble Back' Rolex, 'Oyster Perpetual, Chronomètre', No. 640403, Ref. 3133. Made in the 1940s. Fine, tonneau-shaped, center-seconds, self-winding, water-resistant, stainless steel wristwatch. | Important Collectors' Watches, Pocket Watches & Clocks | Geneva, 16th March 2008
?Bubble Back? Rolex, ?Oyster Perpetual, Chronomètre?, No. 640403, Ref. 3133. Made in the 1940s. Fine, tonneau-shaped, center-seconds, self-winding, water-resistant, stainless steel wristwatch., CHF 7,000 - 9,000 USD 6,500 - 8,000 / EUR 4,300 - 5,600 C. Three-body, polished and brushed, graduated bezel, screwed-down case back and crown. D. Silvered with steel luminous dart indexes, outer minutes/seconds graduation. Luminous Alpha hands. M. Cal. 9 3/4''', rhodium-plated, 18 jewels, lever escapement, Superbalance, self-compensating Breguet balance spring. Dial, case, and movement signed. Diam. 32 mm. Thickness 15 mm
