Important Modern & Vintage Timepieces
Hong Kong, May 10, 2020
Gübelin - Self-winding, triple date à guichets, moon; “Ipso Matic” “Bidynator”; 18K yellow gold
18K yellow gold (partly oxidised), self-winding, round-shaped with elongated lugs, gentleman’s wristwatch, with screwed case-back, silver colour guilloché (engine-turned) 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 guilloché (engine-turned) dial with revolving radial applied 18K yellow gold Arabic numerals.
Grading System | |
---|---|
Grade: AAA |
Excellent |
Case: 2 |
Very good |
Movement: 2 * |
|
Dial: 2-01 |
Very good HANDS Original |
Brand Gubelin, Luzern / Lucerne
Model “Ipso Matic” “Bidynator”
Year circa 1950-1955
Movement No. unnumbered
Case No. 136 624 (by C.R. Spillmann, Chêne-Bourg, near Geneva)
Material 18K yellow gold
Bracelet stainless steel elastic bracelet with deployant clasp (by Gay Frères, Geneva)
Caliber 11 ½ ’’’, lever escapement (based on Bidynator 693, ebauche by Felsa, Grenchen / Granges), adjusted to two positions; with stainless steel protective dust cap
Height 46.2 mm.
Width 36.5 mm.
Signature dial, case and movement