Rare, 100% Swiss steel 'jump hour' watch with date display and 17 jewels. Tenor Dorly was founded in Tramelan, Switzerland in the 1950s, went bankrupt in 1974 and was relaunched in 1997. Early models, especially of this 'space egg' design, are quite rare and very sought-after. The term 'space egg' refers to the oval, egg-shaped dial. Outer dimensions of the case are approx. 4 x 4 cm, the inner 'egg' measures approx. 2.7 x 1.6 cm. Mechanical, manual winding, water resistant, not tested. Comes with a black/dark blue leather strap that's only been worn a few times, and with a new box with watch cushion. The watch keeps good time, minimal deviation is possible, in very good condition for its age, with light, age-related signs of wear. Note: the date jumps to the next day at around 10:30. Please see the photos to form your own impression. Will be carefully packaged and shipped with track and trace.