
Wristwatches · Wristwatch
Patek Philippe Calatrava ref. 438 'Mid Size', 'Breguet' Dial
- Maker / attribution
- Patek Philippe (maker)
- Date
- 1941
- Historical period
- Golden Age of Mechanical Watchmaking (1900 – 1945)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Dimensions
- Case 28 mm
- Stock no.
- OC3118
- Credit line
- Dealer listing, Oliver & Clarke (OC3118)
- Catalogue title (original)
- Patek Philippe Calatrava Ref. 438 'Mid Size' - 'Breguet' Dial (English)
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Record summary
Catalogued by Oliver & Clarke (dealer), United Kingdom (stock number OC3118), this is a wristwatch by Patek Philippe, made in Switzerland, dated 1941. The Atlas places it in the Golden Age of Mechanical Watchmaking period (1900 – 1945) of its Wristwatches collection. Recorded dimensions: Case 28 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 — Oliver & Clarke
The Patek Philippe Calatrava. Arguably the brands most iconic model line, and purest expression of the brand. Their raison d'etre if you will. The line has been a hit since its debut in 1932. So much so, that the name "Calatrava" itself has become something of a byword within the watch industry for traditionally styled, no-frills dress watches that simply tell the time. Over the course of its nearly 100-years of production, there have been seemingly countless iterations within the line, with variations in the metal they are made in, with their size, dial configurations, and eventually, complications. The Calatrava that we have here, a Ref. 438, is a close relative to what is perhaps the quintessential vintage Calatrava reference: the Reference 96. Coming in at approximately 28mm in diameter, this 'Boys' size variant dates to 1941 and is executed in yellow gold. The case itself is very healthy and retains nice symmetrical lugs at all four corners with clear hallmarks. The dial within is also gorgeous. Silver in color, the surface features a satin texture and shows a light patina throughout. The real highlight here, are the applied 'Breguet' indices and corresponding 'spade' handset. Far less common than the more often seen 'pencil' or 'stick' indices, these are coveted by collectors and stunning to behold. Additionally, there are 'dot'-style indices acting as the minute track on the outside of the 5-minute markers, and a silver 'concentric' subsidiary register for the running seconds at the 6 o'clock position. This piece is powered by Patek's proven and long-running manually-wound Calibre 10-110 movement, which is operated by a yellow gold crown at the 3 o'clock position. And don't let the case size fool you, this piece can be worn by a surprising range of wrist sizes. The word icon gets thrown around a lot in the world of watches and horology... this one is absolutely worthy of it.
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
Wristwatches
Bracelet watches were worn by women from the early nineteenth century — Breguet made one for Caroline Murat, Queen of Naples, in 1810–12 — but the wristwatch only became a man's instrument with military use and aviation in the early twentieth century. Between the World Wars it overtook the pocket watch; the 1920s and 1930s brought rectangular Art Deco cases, water-resistant cases and the first automatic winding systems.
After 1945 the wristwatch became a carrier of identity — dress watches, sports and dive watches, chronographs, calendars — produced by Swiss, American, Japanese, German, Soviet and Chinese industries. The quartz revolution after 1969 and the mechanical renaissance since the 1990s, including the rise of independent watchmakers, complete the story.
What to look for
- The reference number (between the lugs or inside the case back) and serial number, the starting point for dating.
- The calibre: its maker and number are often stamped under the dial or on the bridge.
- Originality of dial, hands and crown — refinished ('redial') dials are common.
- Case material marks: 18K/750, 14K/585, stainless steel, gold-filled, plated.
Dating clues
- Wire-lug cases: before c. 1925.
- Water-resistant screw-down cases: from 1926.
- Quartz movements: from 1969; sapphire crystals widespread after c. 1980.
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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