The Encyclopedia of Horologyest. reference archive

Terminology

Horological Glossary

996 watch and clock terms, from amplitude and escapements to winding mechanisms and workshop practice.

996 terms · All categories

2

24-hour dial

B

C

É

Ébauche
Établissage

I

Import mark
Impulse face
Impulse jewel
Impulse pin (roller jewel)
In beat
Incabloc
Index
Index assembly
Inspection card
Intermediate wheel
Invar
Invar pendulum
Isochronism
Isochronism adjustment

J

Jacot tool
Jewel count
Jewel hole
Jewelling tool
Jewels
Jobber
Jump hour
Jumping hour

K

Karrusel
Kew A certificate
Key set
Key wind
Keyless works
Kidney cam
Kif
Knocking (rebanking)

N

Negative set
New old stock (NOS)
Nickel movement
Nickel silver
Niello
Nivarox

O

Object ID documentation
Observatory trial
Observatory trials
Oil sink
Oiler
Open face
Original box and papers
Original condition
Original dial
Originality
Outworker
Oval (worn) hole
Over-polished
Overbanking
Overpolished

Q

Quarter chiming
Quartz crystal (resonator)
Quickset

S

U

Ultrasonic cleaning
Under-dial work
Unidirectional rotating bezel
Unsigned
Up-and-down
Up-and-down indicator

V

Valuation
Verge crown wheel
Verge watch
Vibrating a hairspring
Vibration
Vibrations per hour (vph)
Vienna regulator

Y

Yoke

Z

Zinc-and-steel pendulum