Only Online Auction

Hong Kong, Mar 03, 2021

LOT 66

Self-winding, triple date à guichets, moon; “Ipso Matic” “Bidynator”; so-called “Chioccolatone”; 18K yellow gold

HKD 66,000 - 85,000

CHF 7,600 - 9,800 / EUR 7,000 - 9,000 / USD 8,500 - 10,900

18K yellow gold, self-winding, square-shaped with rounded corners, gentleman’s wristwatch, with snap-on case-back, silver colour dial with centre-seconds and four horological complications:
· Half-instantaneous date of the month (exterior graduation with central index)
· Day of the week (aperture at 11 o’clock; indications given in English)
· Month of the year (aperture at 1 o’clock; indications given in English)
· Phases of the moon (aperture at 6 o’clock)

Silver colour dial with radial applied indexes.

Click to full view

Grading System
Grade: AAA


Case: 3-8


Slightly scratched

Movement: 3 *
Dial: 3-10-01



HANDS Original

Brand Gubelin, Luzern / Lucerne

Model “Ipso Matic” “Bidynator”

Year circa 1955

Movement No. unnumbered

Case No. 149 890

Material 18K yellow gold

Bracelet black leather strap

Buckle gilded metal buckle

Caliber 11 ½ ’’’, lever escapement (based on Bidynator 693, ebauche by Felsa, Grenchen / Granges)

Height 43.2 mm.

Width 32 mm.

Signature dial, case and movement

Accessories original fitted box, certificate of origin