The High Court has ruled IBM does not have a 'duty of good faith' to allow deferred members to claim unreduced pensions between 60 and 63.
IBM has lost a rectification case in the High Court which will cost the computing giant £100m.
Some 250 ex-employees of IBM are taking legal action against the company they claim "forced" them into early retirement to avoid taking massively reduced pension benefits.
UK - Union Unite has warned of a "pensions backlash" from thousands of IBM employees over plans to close its final salary pension schemes to future accrual.
IBM is consulting on plans to close its defined benefit pension schemes to existing members.