Very interesting set of four pocket watches by Maison Oméga, - Lot 422

Very interesting set of four pocket watches by Maison Oméga, discovered in the same box in the Joël Duval collection. 1: Pocket watch in silver superior to 800 thousandths with mechanical movement. - round case, smooth bezel, fluted crown, oval bezel, double officer back. - White enamel dial, black painted Roman numerals, gilded pear-shaped hands, small seconds at 6 o'clock. Case, dial and movement signed. Movement numbered 1866325 Diameter: 50 mm - Gross weight: 106.02 g 2: Water-resistant steel pocket watch with mechanical movement. - round case, smooth bezel, fluted crown, stylized bezel, clipped back with gasket. - two-tone silver dial, black painted Arabic numerals, straight blued steel hands, small seconds at 6 o'clock. Case, dial and movement signed. Case numbered 9936922 Movement numbered 9189220 calibre 38.5 L T1 Diameter: 50 mm - Gross weight: 106.02 g 3: Steel chronograph pocket watch with mechanical movement. - round case, smooth bezel, fluted crown, oval bezel, double officer back. - white enamel dial, black-painted Arabic numerals and tachymeter scale, blued steel serine hands, small seconds at 6 o'clock, 30-minute elapsed totalizer at 12 o'clock. Case, dial and movement signed. Case numbered 9586486 Movement numbered 9115492 calibre 39 chro Diameter: 48 mm 4: Chronograph pocket watch in silver superior to 800 thousandths with mechanical movement. - round case, smooth bezel, fluted crown, oval bezel, double officer back. - White enamel dial, black painted Roman numerals, golden pear-shaped hands, small seconds at 6 o'clock, 15-minute elapsed totalizer at 12 o'clock. Case, dial and movement signed. Case numbered 5227374 Movement numbered 4012280 Diameter: 50 mm - Gross weight: 82.83 g Condition report: Good overall condition, scratches and bumps from use, watches in working order at time of appraisal, servicing recommended. Provenance: Ex Joël Duval collection, this was his "Holy Grail" in Omega pocket watches.