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The Encyclopedia of Horology

Wristwatch · Calendar watch with moon phase

Gerald Genta Gefica Calendar Moon

Partially verified

This Gerald Genta Gefica Calendar Moon wristwatch is produced in 18K yellow gold, measuring 33mm in diameter and 44mm in length including lugs. The watch features a dark, textured dial with a moon phase indicator positioned at 12 o'clock, a date sub-dial at 3 o'clock, a day indicator at 9 o'clock, and a GMT function at 6 o'clock. The hour markers are dot indices treated with luminous material, matching the stick-shaped hands. The timepiece is powered by a Gerald Genta quartz movement, identified as caliber 606, which contains 10 jewels. It is presented on a black strap accompanied by an 18K yellow gold Gerald Genta buckle. Case engravings indicate the reference number G 2940 and serial number 38265. The auction description reports the condition as good, with no accompanying box or papers.

Front view of the Gerald Genta Gefica featuring a textured dial, moon phase, and calendar sub-dials.
Front view of the Gerald Genta Gefica featuring a textured dial, moon phase, and calendar sub-dials. — Laurent Fine Watches. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
laurentfinewatches.com
Category
Wristwatch · Calendar watch with moon phase
Maker / attribution
Gerald Genta
Reference
G 2940
Catalogue / lot identifier
Gerald-Genta-Gefica-18K-V-09-21-2026
Source-reported date
1990's
Source-reported place
Switzerland
Source-reported serial
38265

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Dial and Complications

The watch features a dark, textured dial, described as having a round shape. It is equipped with four sub-dials: the 12 o'clock position hosts a moon phase complication, while the 3 o'clock position tracks the date. The 9 o'clock position provides day-of-the-week indication, and the 6 o'clock sub-dial is designated for GMT functionality.

The hour markers are applied dots with luminous inserts, complemented by stick-shaped hands that also incorporate luminous material. The moon phase aperture is set within a blue disc marked with 'gerald genta' and 'Genève'. The overall dial surface exhibits a distinctive granular texture.

Evidence for this section
  • “The dial is round with blue color.”
  • “It has dots for each hour with excellent luminous.”
  • “On the dial comes 4 sub dials, the 12 o’clock for the moon phase, the 3 o’clock the date, the 9 o’clock the day and the 6 o’clock the GMT function.”
  • “The hands have a stick shape with excellent luminous.”

Case and External Features

The watch case is constructed from 18K yellow gold and exhibits a 33mm diameter excluding the crown, with an overall lug-to-lug length of 44mm. The bezel displays a decorative, textured edge, often referred to in related collections as a coin or beaded edge.

The exterior case back is engraved with the model name 'Gefica' along with the reference number 'G 2940' and the serial number '38265'. The interior case back markings include references to the brand, material purity, and model reference.

Evidence for this section
  • “The case is in 18k yellow gold with engraved outside “Gefica – G 2940 4 38265””
  • “inside Gerald Genta Swiss – 18K – .750 – G 2940 4””
  • “SIZE – DIAMETER EXCLUDING WINDING CROWN: 33MM”
  • “SIZE – LENGTH INCLUDING LUGS: 44MM”

Movement and Equipment

The movement is a Gerald Genta branded quartz caliber 606, which utilizes 10 jewels. This electronic movement powers the calendar and GMT functions displayed on the dial.

The watch is accompanied by an original Gerald Genta strap in black, fitted with an 18K yellow gold buckle signed by the brand. The auction description notes that the timepiece is sold without original box or papers.

Evidence for this section
  • “The watch has a Gerald Genta quartz movement with caliber 606 and 10 jewels.”
  • “The watch comes with an original brand-new black Gerald Genta strap and 18K yellow gold Gerald Genta buckle.”
  • “BOX: NO”
  • “PAPER: NO”

Open research questions

  • Is the textured dial surface composition officially confirmed as meteorite by the manufacturer?
  • What is the specific historical production date range for the Gefica Calendar Moon G 2940 model?

Source evidence

Recorded claims and source quotations for Gerald Genta Gefica Calendar Moon
FieldSource-reported valueSource quotation
MakerGerald Genta“GERALD GENTA”
ModelGefica Calendar Moon“GEFICA CALENDAR MOON”
MovementQuartz caliber 606 with 10 jewels“Gerald Genta quartz movement with caliber 606 and 10 jewels”
Case Material18K yellow gold“18K YELLOW GOLD”
Case MarkingsG 2940 4 38265“engraved outside “Gefica – G 2940 4 38265””
Movement OriginSwiss“Gerald Genta Swiss”

Visible details

  • Textured surface on the dial
  • Beaded or coin-edge detailing on the case bezel
  • Sub-dial at 6 o'clock labeled with a 24-hour scale
  • Blue-toned circular moon phase disc at 12 o'clock

Research qualifications

  • The source refers to the dial material as 'meteorite' without further technical specification or provenance
  • The attribution of the dial color as 'blue' in the text appears to contrast with the visual appearance of the textured black dial in the photographs

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت مچی Gerald Genta مدل Gefica Calendar Moon از طلای ۱۸ عیار

Reviewed 2026-11-02 · Record 304f31faed

Terms in this record

Glossary explanations for terms named in this object’s record.