Thanks for posting this one, and sending me the full SN.

Serial number database is showing that

• 2031xx to 2037xx are primarily Sifferts
• 2040xx to 2041xx are black dialed Autavias (primarily MH)
• 2051xx to 2055xx are the first 1163 GMTs.

: This is my 1163MH with serial 2040xx, 'later' dial with the
: non-ridged markers but 'early' polished steel hands.
: The GF bracelet clasp is stamped 2/70, though I've no way of
: ascertaining if it's original to the watch.
: I've always wondered why the hands are such - according to the blog
: post below, polished hands should belong to the eariler dials
: with 'Chronomatic' or ridged markers, while dials with
: non-ridged markers should have the later hands with black insets
: - if these were sevice hands, I would have expected them to be
: of a later (Viceroy) rather than earlier style.
:
: http://www.onthedash.com/thoughts/field-guide-to-the-heuer-autavia-reference-1163-black-dial/
: Maybe mine had a service replacement dial?

: So yours, being earlier than mine, should have pre-Viceroy hands,
: thus your Viceroy hands are probably service hands?

: Just my 2 newbie cents - I'm sure the experts will soon weigh in
: with their more accurate opinions!

: ben
: Singapore