Mbah Gotho, from Indonesia, claims he was born on December 31, 1870, and reckons that his ID card proves it, Metro reports.
If correct, it makes him significantly older than the officially verified oldest person ever – French woman Jeanne Calment, who lived to 122.
All of his siblings are dead, along with his four wives – the last one died in 1988 – and his children, so he celebrated with his grandson Suryanto and wife Suwarni.
When asked what the secret to a long life is, he replied ‘the recipe is just patience’.
His grandchildren said Mr Gotho spends most of his days listening to the radio because his eyesight is too poor to watch TV.
Staff at the Indonesian records office have confirmed Mr Gotho’s date of birth as December 31 1870.
But he might never be listed as the world’s oldest man because the documents have not yet been independently verified.
Others have previously claimed to have broken the record without having their age verified, such as 171-year-old James Olofintuyi from Nigeria and 163-year-old Dhaqabo Ebba from Ethiopia.