WS-401 Hairspring Adjustment

WS-401 Hairspring Adjustment
A mechanical watch depends upon the oscillation of the hairspring attached to the balance wheel. Without proper hairspring adjustments, the watch would not operate at the correct frequency.

Participants will learn how to:

  • Perform basic hairspring adjustments
  • Correct the hairspring in the round and in the flat
  • Make adjustments to the overcoil and the collins curve

Required Tools:

  • Selection of eye loupes: 10x, 4x
  • Hairspring collet lifting levers
  • Tweezers #7, 5, or 3C (steel only)
  • Hairspring glass holder
  • Students can optionally bring: jewelers screwdrivers, rodico, parts tray with cover, dust blower, and a collet closing vise.

Please contact Education at or (717) 684-8261 ext. 237 with any questions.

Workshop Fee:

NAWCC Member

$660 Early Bird (before 9/9/2020)
$710 Regular

Non Member
$700 Early Bird (before 9/9/2020)
$750 Regular

Lab Fee: $30.00 (included in the price of the workshop) 

10/9/2020 8:00 AM - 10/11/2020 4:00 PM
NAWCC School of Horology 514 Poplar Street Columbia, PA 17512 UNITED STATES

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