Restoration & Overhaul
Complete disassembly of the movement, ultrasonic cleaning, repair, re-bushing where necessary, reassembly and timing out — with a warranty.
Since 1984 · Phoenix, Arizona
A century old — and still keeping perfect time.
Gesswein’s Clocks is a second-generation antique-clock restoration shop — complete movement overhauls, case restoration, house calls, and fully restored antiques for sale. In our words: we consider our work more restoring than repairing.
Free estimates · Mon–Fri 8:30am–4:00pm · Saturday by appointment
The Bench
A second-generation shop, not a service counter.
“We respect and preserve as much of any original piece as possible.”
William (Wm. C.) Gesswein, second-generation clocksmith, started in his father’s shop and has been servicing the Valley since 1984. He’s joined at the bench by Larry Cooper, past president of NAWCC Chapter #112 — the National Association of Watch & Clock Collectors.
1984Servicing the Valley since
2ndGeneration clocksmith
#112NAWCC chapter, past president on staff
The Restoration Journey
How a tired antique gets its time back.
Disassemble→Ultrasonic clean→Repair & re-bush→Reassemble→Time out
As it arrives
A tired case, split at the seams, its old glue giving way. Every job starts with an honest look at what’s original, what’s worn, and what it needs — and a free estimate.
Every part, accounted for
The movement is completely disassembled and run through an ultrasonic cleaner. Every wheel, pivot and plate is inspected on the bench before anything goes back together.
The case, re-glued
Worn bushings are replaced where necessary; the case is repaired, re-glued and clamped true — preserving as much of the original piece as possible.
Running like new
Reassembled, oiled and timed out — here, a restored Seth Thomas parlor clock. Antiques are supposed to look like antiques — we just make them look and run like well-taken-care-of antiques.
Overhaul work carries a warrantyServices
Four ways we look after a clock.
Case & Dial Restoration
Dials and cases brought back carefully — we respect and preserve as much of any original piece as possible.
House Calls
In-home service across the Valley — mostly grandfather (hall) clocks and large wall clocks that shouldn’t travel.
Sales & Sourcing
Primarily antique, fully restored clocks for sale — and if you’re after something specific, we’ll help you locate it.
For Sale
Restored, running, and looking their age.
Detail, from the showroom floor. A moon-phase dial with its original gilt filigree — the kind of piece we’d rather preserve than replace. Antiques are supposed to look like antiques.
Sales are primarily antique, fully restored clocks — and no two are alike. Looking for a particular maker, chime or case? See the full showroom →
Clock Care · From the Bench
Regulating your pendulum clock.
Running a few minutes fast or slow each day? You can regulate it yourself — the rating nut sits just below the pendulum bob.
- Turn the nut right → the clock runs faster. Turn it left → slower. The nut raises or lowers the bob.
- One full turn ≈ one minute per 24 hours. Small moves make real differences.
- Adjust in 24-hour steps. Set it against a reliable clock, wait a day, then correct again.
How often a clock wants attention
- Every 3 years — weight-driven clocks serviced
- Every 5 years — mainspring clocks oiled and serviced
- Every 25–30 years — a full overhaul
Contact · Book a Repair
Bring it in, or we’ll come to it.
Visit the shop
3923 E. Marilyn Rd, Phoenix, AZ 85032
Cross-street: 40th St. & Greenway
Hours
Monday–Friday, 8:30am–4:00pm
Saturday by appointment only
Service area
Phoenix and the Valley — plus Scottsdale, Flagstaff, Prescott and Sedona.
Free estimatesIf needed, you will hear back within 48–72 hours.
3923 E. Marilyn Rd — just off 40th St. & Greenway, Phoenix.