But within days of the first pictures of Smith as The Doctor appearing online, fans began flooding the Harris Tweed Authority with calls asking what particular type of tweed it was, and how they could get it for themselves.
His costume has provided a welcome boost for the woollen fabric, the production of which takes place in the Hebrides from start to finish.
Lorna Macaulay, of the Harris Tweed Authority, and Ann MacCullam, who recently became the first woman ever to run a Harris Tweed Mill, identified the particular variant worn by Smith as a Mackenzie "two by two" dogtooth tweed, most likely dating from the 1960s.
Miss MacCallum told The Times: "We've had a huge amount of interest in this authentic product. It's an old weave, a Harris weave, everybody here recognises it.
"We have the ability to replicate it and would be keen to satisfy Doctor Who fans and produce a tweed that's as close as possible to the original."