In 1983 was awarded a PhD in Philosophy, specialising on the history of Research, and received a scholarship to study theoretical physics and astronomy at the University of Bern, Switzerland.

In the early 1980s Oechslin started to work for Ulysse Nardin, where he developed numerous watches, including the Freak model, which went on to gain international acclaim.

[8][9] He also designed the Astrolabium Galileo Galilei wristwatch, mentioned in 1989 in the Guinness Book of World Records as the most complex watch ever made.

[12] Oechslin currently collaborates with a number of universities such as ETH Zürich and the Université de Neuchâtel, and is a member of the jury of multiple organizations.

[13][14][15] 2023: Ludwig Oechslin's «Freak» was awarded the «Iconic Watch Price» of the GPHG[16] 2016: Hommage à la Passion of the Swiss Foundation High Horology[17] 2009: Special Jury Prize at the Grand Prix d'Horlogerie de Genève[18] 1995: Prix Gaïa (histoire-recherches) of the International Museum of Horology[19] 1989: At the end of the 1980s Ludwig Oechslin developed the «Astrolabium Galileo Galilei» for Ulysse Nardin gaining the company an entry into the Guiness Book of Records 1988/89.