Vintage watches made by Gruen are widely available. Many of the high-quality watches Gruen created during the previous century are still functioning today. These models are a fantastic place to start for those who are interested in collecting, investing, or just going for a traditional appearance.

Watch Gruen Techni-Quadron The Quadron and Techni-Quadron watches, both of which were introduced in 1928, shared a rectangular face. The top and bottom dials were both quite large, with the former displaying the hour/minute and the latter the second hand.

The Techni-Quadrons were sometimes called "doctors watches" because the large seconds dial made it simple to observe while taking a pulse. Engineers in particular, but also other technical people in general, admired the watch. Keep in mind that none of the dual-dial Gruen watches were medical timepieces. On a Techni-Quadron, the hour/minute hand is situated above the point where the crown enters the case, as opposed to the dial's center. Some of them additionally featured an expanding buckle that enabled them to glide up to the arm, freeing the hand and wrist in the process.

The Square Carr was a practical square-shaped pocket watch that was introduced in 1931. The Carr is French for square. It was shaped like a diamond thanks to the arrangement of the numbers 12, 3, 6, and 9. It was promoted as a portable table clock, a men's pocket watch, and a women's purse watch because it could be used by both genders. A few of the models have illuminated hands and numerals to make them visible at night. The Carr was discontinued in 1934 and cost about $55 (about $1400 in today's dollars).

The famous Curvex line, which debuted in 1935, was known for its men's Curvex Governor and its women's Curvex Queen (1936). Not only was it the most well-known watch in the Gruen vintage line, but also served as the collection's centerpiece until the late 1940s. After 1954, this watch's production came to an end.

The Curvex's exclusive and distinctive feature was that both the watch and the internal movement were curved. These watches used the patented mechanism (1,855,952), hence the gear layout was curved in arrangement. In the 1930s, several other curved watches were forced to use more delicate, smaller movements that weren't very accurate.

Real men's Curvex watches all had one of four Precision grade movements. In actuality, the movement is what distinguishes these watches as Curvex; without it, they wouldn't be Curvex. The four movements are the caliber 440 (1940), a short, square/oval movement, the caliber 370 (1948), a short and wide movement, and the caliber 311 (1953) - a long, thin and curved movement (Custom Curved) (Curvametric).

The Distinctive Ristside The Ristside watches, which are pronounced "wrist side," were introduced in 1937 and were styled and constructed to be worn on the side of the wrist and in line with the thumb. Collectors had a specific passion for these watches, but they were uncommon because Gruen did not sell many of them. Also possible is the attempt by some collectors to pass off any local watch with hinged lugs as a Ristside. All Ristsides, with the exception of Fraternity (see below) and one other comparable model, are rectangular in design and feature curved casings.

The Curvex-Ristside watches are regarded as belonging to both the Curvex and the Ristside families of Gruen vintage watches. The Curvex Coronet, Curvex Lord, and Curvex Admiral watches all utilised the 330 movement, which was characterized as a long, thin, and curved movement in the previous paragraphs. The Curvex-Ristside Fraternity utilized the 440 movement and hinged lugs.