A workshop built on the habit of looking closely.
Krung Watch is a small repair practice in Bangkok's Ratchathewi district. We work on modern automatic watches and take a methodical approach to diagnosis, service, and documentation.
← Back to HomeHow Krung Watch came to be
Krung Watch began in the way most small workshops do — with a single bench, a set of inherited tools, and a strong opinion about how repair work ought to be conducted. The practice was established in Bangkok's Ratchathewi district, a neighbourhood long associated with trade and craft, and has occupied the same premises on Phayathai Road since it opened.
The founding principle was simple: a watch owner should leave with a written account of what was found and what was done, not a verbal summary that fades within a week. This means every assessment produces a report, and every service is logged in a record that remains on file for future reference. When a watch returns to the bench after several years, the previous findings are available to inform the current work.
We work on modern automatic watches — pieces manufactured within the past three decades — and we are selective about taking on work outside that range. We would rather refer a customer to a workshop better suited to their piece than attempt a service we cannot stand behind. This is not the fastest model, but it is the one we find most honest.
What guides the work
Observation first
Before any tool touches a movement, we look and record. The timing machine reading, the amplitude, the beat error — these figures matter, and they belong in a document the owner can keep.
Owner agreement before action
If the assessment reveals something unexpected, we discuss it before proceeding. No significant spend is committed without the owner's understanding and consent.
Records that accumulate
A watch that returns after five years carries its history with it. Previous findings inform current decisions, and the record grows more useful over time.
The people at the bench
Prayuth Kasem
Lead Watchmaker
Trained in movement servicing through a two-year apprenticeship and subsequent bench work across Bangkok. Prayuth handles full movement services and oversees the service record system.
Napasorn Wiriya
Diagnostic & Assessment Specialist
Napasorn manages all incoming diagnostic assessments and produces the written condition reports that accompany every watch through the workshop process.
Siriporn Thammarat
Water Resistance & Case Technician
Siriporn specialises in gasket work, pressure testing, and case restoration. She conducts all wet pressure tests and maintains the testing equipment to current standards.
How we work
Calibrated Testing Equipment
Our timing machine and pressure testing apparatus are maintained and calibrated regularly. Readings taken on dated equipment are unreliable; we keep ours current.
Manufacturer Documentation
Where maker service manuals and specifications are accessible, we follow them. This applies to lubricant grades, torque values, and regulation targets specific to each calibre.
Original Parts Where Possible
We source replacement components from manufacturer catalogues where these are available. When genuine parts cannot be obtained, we discuss alternatives with the owner before fitting anything.
Customer Data Handled Carefully
Service records contain personal contact information and details about valuable property. We store these securely and do not share them with third parties. See our Privacy Policy for full details.
Communication at Each Stage
Owners are contacted when their watch is received, when assessment findings are ready, and when the finished piece is ready for collection. We do not consider silence a form of communication.
Post-Service Follow-up
We invite owners to return or contact us with any questions in the weeks following a service. If something does not feel right after the work is done, we want to know about it while the details are still fresh.
Watch repair in Bangkok, done at the right pace
Bangkok has no shortage of shops that will clean a watch, swap a battery, and hand it back within the hour. Krung Watch occupies a different position: a small practice where each piece receives individual attention, each service is documented, and each owner is kept informed throughout the process.
Modern automatic movements are intricate mechanisms. A service conducted with the correct lubricants, in the correct quantities, applied to the correct surfaces, will perform differently from one that was rushed through a cleaning bath and reassembled without reference to specification. The difference is not always visible to the naked eye, but it shows up on the timing machine — and it shows up in how the watch performs over the following years.
Our water resistance work is similarly methodical. Gaskets degrade. A watch that was rated to 100 metres in 2018 may hold considerably less than that today if its seals have never been replaced. We test before and after, and we note both figures. For owners who swim or dive with their watches, this is not a minor detail.
We are based on Phayathai Road in Ratchathewi, within a short walk of BTS Phayathai. Appointments are preferred, though walk-ins are welcome for initial conversations. We are open Monday to Friday from ten in the morning until six in the evening, and on Saturday mornings until three.
Bring your watch in for a conversation
A diagnostic assessment is the natural starting point — no commitment required. We will look at the piece, record what we find, and share our assessment in writing.
Request an Assessment