Only Online Auction

Geneva, Jan 03, 2022


Aïda Patent – Ollendorff Watch Co.
Square pocket watch; gun metal

CHF 100 - 200

EUR 100 - 200 / USD 110 - 220 / HKD 850 - 1,700

Sold: CHF 137

Gun metal, open-face, keyless-winding, square-shaped, pocket watch, with subsidiary seconds at 6.

Case-back polished.

Cream colour enamel dial, with suspended Arabic numerals inside red cartouches; gilded metal “Louis XV” hands.

Movement 20’’’, gilded brass, going barrel, pin-lever Roskopf escapement, monometallic balance and blued steel flat hairspring, polished steel index-regulator.

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Image Image

Grading System
Grade: A


Case: 3


Movement: 3*


Overhaul recommended, at buyer's expense

Dial: 3-01


HANDS Original

Brand Aïda Patent, La Chaux-de-Fonds

Model “Aïda Patent”

Year circa 1900

Movement No. unnumbered

Case No. unnumbered

Material gun metal

Caliber 20’’’, pin-lever Roskopf escapement

Height 76.2 mm.

Width 54.5 mm.

Weight 152.8 gr. (approx.)

Signature dial


The purchase price payable by a buyer will be the sum of the final bid price plus the buyer’s premium, together with any applicable sales or compensating use tax. In addition to the hammer price, the buyer’s premium is payable as follows: 25% of the hammer price on each lot.

Important notice – Special conditions Please look carefully at all the photos as they are an integral part of the description. Any defect not mentioned in the descriptions but visible on the photos will be considered as described and cannot lead to any claim. The dimensions are given as an indication and may slightly differ from the measures mentioned by the manufacturers especially for contemporary watches. The photos are not retouched. Colors may differ from reality. For timepieces, we guarantee neither the functioning nor the precision of the movement, nor the water-resistance of the case. In addition, please note that movements, parts of mechanisms or cases may be incomplete. The lots are sold “as is”, described to the best of our knowledge and cannot be returned. Once the online bid is placed by the bidder, it cannot be cancelled.