Important Modern & Vintage Timepieces

Monaco, Jul 21, 2021

LOT 433

Ref. KOT 741 AV, large chronograph, minute counter, patented dial with scale graduated in an Archimedean spiral; “Anti-Magnétique”; 18K yellow gold

EUR 30,000 - 50,000

USD 35,700 - 60,000 / HKD 278,000 - 462,000

Sold: EUR 65,000

18K yellow gold, manual-winding, round-shaped, gentleman’s wristwatch, hinged case-back, white colour enamel dial with subsidiary seconds at 9 and two horological complications:
• 1/5 second chronograph (activated by the single olive-shaped push-piece located on the case-band at 6 o’clock) with tachometric scale graduated in an Archimedean spiral for 300 kilometres per hour
• Dragging 30-minute counter (subsidiary dial at 12 o’clock)

Grading System
Grade: AAA


Case: 2

Very good

Movement: 2*

Very good

Overhaul recommended, at buyer's expense

Dial: 2-01

Very good

HANDS Original

Brand Omega, Bienne / Biel

Model “Anti-Magnétique” “Cadran Breveté / S.G.D.G.” (patented dial, without government guarantee)

Reference KOT 741 AV

Year circa 1928

Movement No. 7 685 557

Case No. 7 600 945

Bracelet brown leather strap

Buckle gilded metal buckle

Diameter 45 mm

Caliber 17’’’, 39 CHRO, straight-line lever escapement

Signature dial, case and movement

Accessories Extract from the Archives


The Extract from the Archives (No. 36 312), dated October 18, 2019, mentioned that this watch was delivered on November 30, 1928, in France.
The inscriptions “Breveté S.G.D.G. / Modèle Déposé” (Patented S.G.D.G. / Registered Design) or “Cadran Breveté / S.G.D.G.” (Patented Dial / S.G.D.G.) means registered and patented design or patented dial without government guarantee.

*a 20% import VAT is due on the hammer price with buyer's premium, plus 150€ for termination of temporary export, at buyer's expense, only if it is delivered within the EU