
Wristwatches · Wristwatch
Croton Nivada Grenchen Aquamatic, 1950s
- Maker / attribution
- Nivada Grenchen (maker)
- Date
- 1950s
- Historical period
- Modern Mechanical Horology (1945 – 1969)
- Country of origin
- Unrecorded in source
- Object type
- Wristwatch
- Dimensions
- Case 33 mm
- Stock no.
- 40993002
- Credit line
- Dealer listing, Analog/Shift (40993002)
- Catalogue title (original)
- Croton Nivada Grenchen Aquamatic (English)
View the source record (dealer listing) ↗ (opens another website in a new tab)Suggest a correction
Record summary
Catalogued by Analog/Shift (dealer), New York (stock number 40993002), this is a wristwatch by Nivada Grenchen, dated 1950s. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Recorded dimensions: Case 33 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 — Analog/Shift
Not every watch that matters wears a coronet or a Calatrava cross. Some earn their stripes quietly, through honest engineering, great proportions, and the kind of backstory that only deep collectors seem to know. This Croton Nivada Grenchen Aquamatic is exactly that sort of discovery. Dating to the 1950s, this example represents one of Nivada’s earliest robust automatic offerings — a model marketed boldly as “The World’s Most Carefree Watch.” Aquamatic was shorthand for the two things that mattered most in the post-war era: waterproof construction and automatic winding. Long before the Antarctic name would make its debut in 1954/55, this was the foundation. Housed in a classic mid-century 33mm stainless steel case with elegant lugs and acrylic crystal, it features a clean, legible dial signed CROTON / Nivada Grenchen / Aquamatic, a reminder of the brand’s dual-market history. (Founded in Grenchen in 1926, Nivada distributed stateside under the Croton name beginning in 1940.) Inside beats one of ETA’s first automatic calibers, a significant movement in the early evolution of self-winding Swiss watches. Fitted to a stainless steel expandable bracelet and accompanied by its original inner and outer boxes plus hang tags, this is the kind of full-set survivor collectors dream about. Understated. Historically important. Effortlessly wearable.
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 timelineMore wristwatches from this periodEarlier: Golden Age of Mechanical Watchmaking
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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