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.