To add to what Stewart has said below, here you can get a complete new movement (valjoux 7765) for $349

http://www.ebay.co.uk/itm/Movement-chronograph-Valjoux-7765-NOS-swiss-made-/220965004324?pt=LH_DefaultDomain_0&hash=item33728a6424#ht_500wt_922

: Hi all -

: First post here and was wondering if anyone can give me some
: advice.
: I was given this watch back in the 80's. Wore it a couple of times
: at which
: point it was relegated to the back of my sock drawer. Pulled it out
: a couple of
: years ago and it is not working as it seems some moisture had crept
: in. Also
: noticed that one of the push button assemblies is damaged. See pic.

: Long story short, sent it to be repaired and they are quoting
: $1800+ to fix and
: overhaul it. Seems high to me. Please respond if you have any
: comments good or bad.
: See below description of charges. Thank you in advance. - Matt

: Overhaul
: Complete mechanical restoration - Disassemble watch, clean all
: moving parts with specialized cleaning solvents, lubricate
: internal components with high grade oil, time test for 48 - 72
: hours.
: The following repair(s) will also be conducted during the overhaul
: process:

: Main spring replacement
: Hand make discontinued parts
: Remove rust from movement
: Chrono complication repair

: $1,199.99

: Stem & Crown
: New genuine stem and crown.

: $99.99

: Restoration
: Custom made push button assemblies.

: $399.99

: Crystal Replacement
: Replace with 100 percent genuine *custom cut* crystal.

: $99.99
: ___________________________
: Subtotal: $1,799.96
: Shipping: $22.45
: Total: $1,822.41