Eberhard Oversized Automatic 18K RG (Ref. 11601 642) "Cal. 11500", 1950s — view 1 of 6 — View 1 of 6 · Image: Craft & Tailored · original image source (opens another website in a new tab)

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Wristwatches · Wristwatch

Eberhard Oversized Automatic 18K RG (Ref. 11601 642) "Cal. 11500", 1950s

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.

Maker / attribution: Eberhard (maker)
Date: 1950s
Historical period: Modern Mechanical Horology (1945 – 1969)
Country of origin: Switzerland
Object type: Wristwatch
Dimensions: Case 36 mm
Dealer: Craft & Tailored (dealer), Los Angeles
Stock no.: EBHA11601642
Credit line: Dealer listing, Craft & Tailored (EBHA11601642)
Catalogue title (original): 1950s Eberhard Oversized Automatic 18K RG (Ref. 11601 642) "Cal. 11500" (English)

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Record summary

Catalogued by Craft & Tailored (dealer), Los Angeles (stock number EBHA11601642), this is a wristwatch by Eberhard, made in Switzerland, dated 1950s. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Recorded dimensions: Case 36 mm. The record is illustrated with 6 photographs.

Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.

Catalogue description

Dealer description — Craft & Tailored

The Eberhard & Co. brand is firmly rooted in Swiss watchmaking history and was once the largest Swiss watch manufacturer in the early 1900s. The founder George-Emile Eberhard founded the company at the young age of 22 years old in La Chaux-de-Fonds, Switzerland. Though Eberhard & Co. greatly influenced the rise of the Swiss watchmaking history, the brand is most well-known for its post-war wristwatches, such as the elegant Extra-Fort chronograph and the Scafograph diving sports watch. SPECS Stock # EBHA11601642 Brand Eberhard & Co. Style Automatic Dress Watch Model 11601 642 Serial N/A Size Men's Material 18K Rose Gold Dial Silver "Tapestry" Millimeters 36 Bracelet 2pc Leather Strap CASE & BRACELET The noble 36mm 18K rose gold case is in lovely condition overall, showing minimal signs of previous polishing and light signs of use expected for the age of the watch. The unsigned crown appears to be original to the watch. The case back retains all of the original factory markings in deep and crisp condition. The watch comes supplied on a 2pc leather strap. DIAL & HANDS The original silver dial features vertical ridges that span the length of the dial, also known as a tapestry dial, and is in exceptional vintage condition. Only minor elements of age are present on the otherwise bright dial. The rose gold makers exhibit light age and remain very presentable. The original rose gold dauphine hands display light oxidation which is expected and are in excellent condition. ACCESSORIES

Historical context

Modern Mechanical Horology (1945 – 1969)

Tool watches for divers, pilots and astronauts; electric watches anticipate the electronic age.

The classic era of the mechanical wristwatch: dive watches, chronographs for motor racing and space flight, GMT watches for jet travel, slim dress watches, automatic calendars, and the rise of Japanese manufacturers alongside Swiss, American, German and Soviet industries.

Read the period in the timeline More wristwatches from this period Earlier: Golden Age of Mechanical Watchmaking

Atlas type guide

Automatic (self-winding) watches

Self-winding watches use the wearer's motion to wind the mainspring. Abraham-Louis Perrelet and Breguet made 'perpétuelle' pocket watches with oscillating weights in the late eighteenth century, but the principle only became practical in the wristwatch. John Harwood patented a bumper automatic in 1923; Rolex's Perpetual rotor (1931) winding in one direction, and later bidirectional rotors (Eterna, Felsa Bidynator), established the modern form. Micro-rotors (Universal Genève, Buren) and peripheral rotors made automatic watches thinner.

What to look for

A semicircular rotor turning 360° over the movement, or a 'bumper' weight that rebounds between springs.
'Automatic', 'Perpetual' or 'Self-winding' on the dial.
A sealed screw-back case, since automatic watches are wound less often by the crown.

Dating clues

Bumper automatics: 1923–c. 1955.
Full rotors: from 1931 (Rolex); widespread after c. 1950.
Micro-rotors: from 1954–1958.

General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.

Mechanisms mentioned

Chronograph — Complication
Self-winding (automatic) mechanism — Component

Record completeness

Maker or attributionRecorded
DateRecorded
Place or countryRecorded
MaterialsNot in source
DimensionsRecorded
Narrative descriptionRecorded
Inscriptions / marksNot in source
ProvenanceNot in source
Several photographsRecorded

Editorial status: Documented — facts as published by the source; not independently verified by Atlas editors.

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Sources & image rights

Record source: Craft & Tailored (dealer), Los Angeles (opens another website in a new tab).

Image rights: © Craft & Tailored — dealer photographs; permission required (opens another website in a new tab).

Images are hosted by the Atlas for study and credited to their owner. Rights holders may request correction, credit changes or removal, or grant permission, via the editorial office.

Cite this record

"Eberhard Oversized Automatic 18K RG (Ref. 11601 642) "Cal. 11500", 1950s." Craft & Tailored (dealer), Los Angeles, EBHA11601642. Catalogue record in The Horology Atlas, WatchMuseum.org, https://atlas.watchmuseum.org/museum/eberhard-oversized-automatic-18k-rg-ref-11601-642-cal-11500-1950s-247cb9.