Technical Details & Model History

• Case: curved 14kt yellow gold case, typical of the Curvex line (21.5 mm × 43 mm)
• Movement: manual-winding Gruen Curvex caliber 311, specifically designed to follow the curvature of the wrist
• Dial: original two-tone dial with applied Breguet numerals and peripheral minute track
• Crystal: shaped plexiglass
• Strap: black crocodile leather
• Reference: 355-340
• Period of production: 1930s
• Condition: excellent, completely original and of remarkable integrity

Key Features

• Iconic Gruen Curvex model, a true symbol of Art Deco watchmaking
• Patented curved case, ergonomically designed to fit the natural shape of the wrist
• Original two-tone dial with elegant applied Breguet numerals—an extremely sought-after configuration
• High-quality movement for its era, developed specifically for the Curvex architecture
• 14kt yellow gold case, characteristic of high-end American watch production of the 1930s

Historical Context

The Gruen Curvex is one of the most iconic watches in the history of Art Deco design. Introduced in the 1930s, it revolutionized wristwatch ergonomics with its curved case and specially shaped movement, engineered to follow the natural contour of the wrist. Reference 355-340, presented here in 14kt yellow gold with its original two-tone dial and applied Breguet numerals, represents one of the most elegant and desirable configurations. A true classic, highly appreciated by collectors of historical and design-driven timepieces.