Fresh from the estate of a retired Rolex-trained Watchmaker, many Genuine Swiss-Made Longines parts for the calibre L970.2 family.  This includes the following calibres:

L974.2

L976.2

L977.2

L978.2

As well as:

L270.2

L273.2

L276.2

All are in good vintage used condition ready to be used to replace a faulty part in another watch.  Most fit all movement types, some do not.  Refer to your Longines parts catalog to determine part interchangeability.   The cases are as seen with the case-band combination also including the spacer and screw-down crown.