US 12,443,145 B2
Orientable back for a timepiece
Joël Allimann, Vallon (CH); François Erdemli, Colombier (CH); and Enzo Agustoni, Cudrefin (CH)
Assigned to The Swatch Group Research and Development Ltd, Marin (CH)
Filed by The Swatch Group Research and Development Ltd, Marin (CH)
Filed on Jul. 18, 2022, as Appl. No. 17/866,945.
Claims priority of application No. 21190403 (EP), filed on Aug. 9, 2021.
Prior Publication US 2023/0038234 A1, Feb. 9, 2023
Int. Cl. G04B 37/11 (2006.01)
CPC G04B 37/11 (2013.01) 6 Claims
OG exemplary drawing
 
1. A device for fastening a back (1) to a middle (2) of a watch case (100), the back (1) being arranged to be driven onto the middle (2) and having a pattern thereon, the device comprising a casing ring (3) to which is connected at least one position pin (4), said position pin (4) being arranged to cooperate with at least one machining (10) in the back (1) so as to lock an angular rotation of the back (1), in a plane parallel to the back (1), at an orientation in which the pattern on the back (1), relative to the middle (2), is aligned with the 12 o'clock-6 o'clock axis of the watch,
wherein the position pin (4) is a pin that is driven into the casing ring (3).