
Wristwatches · Wristwatch
Eterna Automatic "Bumper" Cal. 1159H, 1940s
- Maker / attribution
- Eterna (maker)
- Date
- 1940s
- Historical period
- Golden Age of Mechanical Watchmaking (1900 – 1945)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Stock no.
- ETRAUT-4
- Credit line
- Dealer listing, Craft & Tailored (ETRAUT-4)
- Catalogue title (original)
- 1940s Eterna Automatic "Bumper" Cal. 1159H (English)
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Record summary
Catalogued by Craft & Tailored (dealer), Los Angeles (stock number ETRAUT-4), this is a wristwatch by Eterna, made in Switzerland, dated 1940s. The Atlas places it in the Golden Age of Mechanical Watchmaking period (1900 – 1945) of its Wristwatches collection. 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
In 1856, a couple of guys named Josef Girard and Urs Schild started a watch movement manufacturer called, appropriately enough, Dr. Girard & Schild. They rebranded a few times, first to Schild Freres, then—perhaps after realizing that neither of the previous names rolled off the tongue—they started putting the name Eterna on their watch dials. That one stuck. The brand has put out some really incredible pieces over the years, most of which fall under the sports-driven tool watch category. But then there are gorgeous, dressier watches like this Eterna "bumper." The watch leverages the brand's atomic self-winding "bumper" Cal. 1159H movement, which in the 1940s was a triumph of horological excellence in itself. The piece is both simple and sophisticated, possessing a quality and feel similar to what you might find in a Patek Phillippe from the same era. And that makes this a real winner in our book. SPECS Stock # ETRAUT-4 Brand Eterna Style Dress Model Automatic Serial 3186725 Size Men's Material Stainless Steel Dial Silver Millimeters 34 Bracelet 2pc Handmade Leather Strap CASE & BRACELET The case appears to have been lightly polished in the past yet retains its factory case geometry and thick even lugs. The crown is also correct and appears to be original to the watch. The case retains its original factory markings. The watch will come supplied on a 2pc handmade leather strap. DIAL & HANDS The original dial has achieved a wonderful and warm patina showing age without any damage or blemishing. The tonal track around the hour markers adds a little mid-century style to the dial. The original hands show consistent patina throughout and the white sweep seconds hand really pops off the dial. ACCESSORIES None. The watch is keeping time, previous service history is unknown.
Historical context
Golden Age of Mechanical Watchmaking (1900 – 1945)
The wristwatch displaces the pocket watch; waterproof cases, self-winding and grand complications.
The wristwatch overtook the pocket watch. Military use in the First World War, aviation, water-resistant cases (1926), automatic winding (1923–31), rectangular Art Deco designs and early chronographs and calendars defined the period.
Read the period in the timelineMore wristwatches from this periodEarlier: Industrial Revolution
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.
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