Only Online Auction

Geneva, Jan 03, 2022

LOT 15

Ref. 143.600, fly-back centre-seconds, regatta yacht-timer, patented countdown counter, silver dial; “Regate”; stainless steel

CHF 500 - 1,000

EUR 500 - 1,000 / USD 550 - 1,100 / HKD 4,300 - 8,500


Sold: CHF 2,000

Stainless steel, manual-winding, tonneau-shaped, regatta wristwatch, water-resistant with screwed case-back, silver colour dial with applied radial indexes, fly-back “retour en vol” centre-seconds (activated by the single round-shaped push-piece located at 4 o’clock) and one horological complications:
·       Dragging 5-minute counter (apertures on the upper part)

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Image Image

Grading System
Grade: AA

Very good

Case: 3-8


Slightly scratched

Movement: 3**


Repair required, at buyer's expense

Dial: 3-9-01



HANDS Original

Brand Aquastar, Geneva

Model “Regate”

Year circa 1965-1970

Movement No. unnumbered

Case No. 402 819

Material Stainless steel

Bracelet black rubber strap

Buckle stainless steel buckle

Diameter 37.5 mm. (bezel)

Caliber F 4000 N (by Felsa, La Chaux-de-Fonds)

Height 47.4 mm.

Width 37.5 mm.

Signature dial, case and movement

Accessories copy of the invention patent


Movement based on the Swiss invention patent No. 385 114, delivered on November 30, 1964 (application filed on February 15, 1961), to Jean Richard S.A., La Chaux-de-Fonds, for a “Pièce d’horlogerie permettant le comptage d’un nombre restreint de minutes” (timepiece allowing the counting of a limited number of minutes), Frédéric Robert, Geneva, and Raoul-H. Erard, La Chaux-de-Fonds, are mentioned as the inventors.
Aquastar, “Regate”
In 1961, Jean Richard S.A. had filed for a patent for a regatta watch with a 5-minute countdown function. This patent represents the “Birth Certificate” of the regatta yacht-timer watches as we still know them today. Not long afterwards, Frédéric Robert (mentioned as co-inventor in the patent) developed the Aquastar “Regate” from this patent using a modified Felsa 4000 N movement. This became the first Regatta yacht-timer wristwatch on the market, being launched in 1964.


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.