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The Bulova Curv, with its curved quartz movement, might have taken the watch world by storm when it was released last year.
But it was by no means the first curved wristwatch ever created.
For example, in 1916, Tissot created the “Banana” watch, with a specially curved crystal. It was made for a Russian aristocrat, who sent it back to Tissot’s headquarters for maintenance just before the outbreak of the Russian Revolution. However, it remained in Switzerland after the Revolution broke out, and served as inspiration for the Banana Centenary Edition released this year.
However, the most famous curved wristwatch is without a doubt the Gruen Curvex, which was introduced in 1935 and almost single-handedly saw Gruen through the Great Depression.
Thanks to strategic partnerships with Swiss companies like Rolex and movement manufacturer Aegler, Gruen had enjoyed success with its doctor’s watch, the Techni-Quadron (which Rolex marketed as the Prince in Europe and the British Empire). But the brand also earned a reputation for innovation in aesthetics. Throughout the 1920s, Gruen experimented with different movement and watch designs, including the Quadron, which housed a tonneau-shaped movement in a rectangular case.
But after the Wall Street Crash of 1929, the U.S. watch industry took a massive hit. Sales of watches went down from five million to only 800,000 a year. Gruen, which was once ranked in the top tier of the watch industry, found itself selling watches at lower price points.
By 1934, Gruen was forced to sell off its shares in Aegler and concentrate movement production in its Swiss facility, the Precision Factory, located in Bienne. The next year, investors and stockholders were horrified to find that the company was in debt to the tune of $1.8 million, or $36 million in today’s dollars. The Board of Directors forced Fred Gruen to resign as President of the company his father had founded, and brought in Benjamin S. Katz, president of a New York-based manufacturer of watch cases.
However, despite the economic setbacks and political changeovers, the brand was poised for a comeback—which came in the form of this watch, the Curvex.
Gruen had actually applied for a patent for a curved movement in 1929, through its Bienne-based agent, Emile Frey. It was granted to Frey in 1932, but assigned to Gruen. Accordingly, the movement designers at the Precision Factory set to work designing what would become a revolutionary watch movement: the Calibre 311.
The Calibre 311 was the world’s first curved wristwatch movement. It became so famous, and such a best-seller, that the name “curvex” became associated with the style of watch. However, since the patent was registered exclusively to Gruen, the only true “curvex” watch from the period is the Curvex.
The Curvex was offered with four different movements. The Calibre 330 (featured in this watch) was released in 1937. Other movements followed throughout the 1930s and 1940s, including the Calibre 440 and the Calibre 370.
The Curvex that we offer here features the Calibre 330, a movement that is notable for being longer, thinner, and more curved than its predecessor the Calibre 311. Many watches bearing this calibre would be marketed as “Custom Curved” in advertisements. Moreover, the boxes that they came in would be curved as well, to show off the shape of the watch inside.
Without the Curvex, it’s quite possible that the brand would have gone under a lot sooner than it did. Fortunately, the sales of the watch—Gruen’s flagship—would bolster the company well into the 1950s, when the model was discontinued. Shortly after, Gruen would sell off the Precision Factory, which was eventually bought by Rolex.
The Curvex occupies a special place in the hearts of many collectors, who appreciate it for its revolutionary design. This particular example features a yellow gold case and an elegant two tone black and white dial with Breguet numerals. With its distinctive look, it’s sure to catch glances—and compliments.
Yellow gold case is approximately 20mm X 48mm (excluding crown). Calibre 330 Manually-Wound Movement. Circa late 1930s.
Overall Condition: Case is in very good condition overall, showing signs of moderate use and wear. Dial is in very good condition overall, showing signs of age. Unsigned crown.
Includes one 15mm brown lizard strap.
Analog/Shift stands behind the authenticity of our products in perpetuity.
We back each Analog/Shift vintage timepiece with a one-year mechanical warranty from the date of purchase.
All of our watches include complementary insured shipping within the 50 states. We are happy to hand deliver your purchase in Manhattan or you may pick it up at our showroom.
Please contact us prior to purchase for additional details on shipping and payment options