Welcome to Electronic Instrument Service. We've been servicing horological and ultrasonic cleaning equipment since 1966.

Electronic Instrument Service is the sole factory-authorized US service facility for Greiner-Vibrograf as well as L&R products.

We repair and service all makes and models of watchmakers' cleaning, timeing, dry and wet pressure testers, as well as benchtop ultrasonic cleaners. Some popular models include:

Greiner-Vibrograf

• Watch Cleaners
  • ACS900
  • Mark 5
• Timing Rate Machines
  • B100
  • B200
  • B300
  • B600
  • Compact 900
• Dry Pressure Testers
  • WPC300A
  • LeakChecker 2000
  • Poseidon LT 100
• Wet Pressure Testers
  • WPL310
  • WPL610
• Magnetics
  • Magnomatic (demagnetizer)
  • Magnotest II (measurement)

L&R

• Watch Cleaners
  • Master
  • Mastermatic
  • Console
  • Varamatic
  • Varamatic 3
  • Tempo 355
  • Tempo 355A
  • Tempo 400
• Benchtop Ultrasonic Cleaners
  • PC3
  • Q90
  • Q140
  • Q210
  • Q280
  • Q310
  • Q360
  • Q650
  • S140
  • S150
  • S200
  • S280
  • S310
  • S360
  • S650

McKenna

• Tube-Type Ultrasonic Cleaners
  • CH-17

Sigma Products

• Dry pressure testers
  • SM8404
  • SM8810
  • SM8820

Bulova / Watchmaster

• Watch Cleaners
  • Mark 2
  • A-1T
  • WT

We offer GPS calibration for timeing equipment, and provide a NIST traceable certificate.

Estimates are usually ready within 48 hours of receipt of your equipment. Once you have approved the estimate, turnaround time is typically 3 to 5 business days, except Varamatic and Tempo units, which are 14 to 21 days, subject to parts availability.