Ref. 3458, Stainless Steel and Pink Gold, So Called ?Bubbleback? Rolex Oyster Perpetual 'Chronomètre', Ref. 3458, No. 91313, case No. 55273, retailed by Serpico y Laino, Caracas, Venezuela. Made circa 1939. Very fine, tonneau-shaped, self-winding, water-resistant, pink gold and stainless steel gentleman's wristwatch with a pink gold and stainless steel bracelet 'à grosses mailles' by Gay Frères.

C. Three-body, bicolor, polished and brushed, screwed down case back and crown, pink gold reeded graduated bezel and winding crown, steel case. D. Champagne with luminous Arabic numerals and triangular and baton indexes, subsidiary seconds dial. Luminous blued steel ?skeleton? hands. M. 9 3/4''', rhodiumplated, 19 jewels, lever escapement, monometallic balance, self-compensating Breguet balance-spring. Dial, case, and movement signed. Diam. 32 mm. Thickness 13 mm.

Ref. 3133, Stainless Steel & Pink Gold So- Called ?Bubbleback? Rolex, ?Oyster Perpetual, Chronomètre?, Ref. 3133, No. 32674, case No. 426480. Made in 1945. Fine, tonneau-shaped, center seconds, self-winding, waterresistant, stainless steel and pink gold gentleman's wristwatch with a stainless steel and pink gold riveted expanding Oyster bracelet.

C. Three-body, bi-color, polished and brushed, inclined pink gold bezel and winding crown, steel case, screwed-down case back and crown. D. Silvered with gold baton indexes and Roman quarter-hour numerals, gilt outer minute track. Pink gold "baton" hands. M. Cal. 620, 9 3/4''', rhodium-plated, 19 jewels, lever escapement, Superbalance, balance, self-compensating Breguet balance spring. Dial, case, and movement signed. Diam. 32 mm. Thickness 15 mm.

"First Generation Bubbleback" Rolex, Oyster Perpetual, case No. 29546. Made circa 1933. Very fine, tonneau-shaped, self-winding, water-resistant, 9K yellow gold gentleman's wristwatch.

C. Three-body, polished, screwed-down case back and crown, engraved case back: ?R.B. Morgan, ESQ., from the Teachers of Croydon, 1935?. D. Matte silver with applied Arabic numerals, sunk subsidiary seconds dial. Black "bâton" hands. M. Cal. 9 3/4''', rhodium-plated, 17 jewels, straight line lever escapement, monometallic balance, Breguet balance spring. Dial, case and movement signed. Diam. 31 mm. Thickness 12 mm.