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Important Modern & Vintage Timepieces

Hong Kong, May 10, 2020

LOT 333

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.

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

Signature dial, case and movement

HKD 69,000 - 86,000

USD 8,800 - 11,000 / EUR 8,000 - 10,000 / CHF 8,800 - 11,000

Sold: HKD 87,500


Grading System
Grade: AAA

Excellent

Case: 2

Very good

Movement: 2 *
Dial: 2-01

Very good

HANDS Original