Watch owner at workshop
00. / TESTIMONIALS

What clients say after the work is done.

These accounts come from owners who brought watches to the bench and received their piece back with a written record of what was done. Their words are their own.

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9+
Years in Ratchathewi
1,400+
Watches through the bench
4.8
Average satisfaction score
96%
Return for next service
01. / CLIENT ACCOUNTS

From owners who have been through the process

SK
Somchai Kruengkrai
Bangkok, Collector

I brought in a modern Seiko that had been sitting in a drawer for three years. I was curious more than concerned — the watch was running, but I wanted to know where it stood before deciding whether to service it. The diagnostic was thorough. The timing machine figures they gave me were something I had not thought to ask for before. The written summary was clear and not oversold — they told me the amplitude was low and the lubricants were overdue, but they did not push the service on me.

April 2025
Diagnostic Assessment
PT
Pattarachai Tungwong
Bangkok, Professional diver

My dive watch is a tool I depend on, not a display piece. I had the water resistance restoration done here after the crown started feeling stiff and I noticed the crown seal looked dry on inspection. They replaced everything, ran both the dry and wet pressure tests, and gave me a document with the achieved rating. That paper matters to me — I know exactly what the watch can handle rather than assuming the original spec still applies after seven years of use.

May 2025
Water Resistance Restoration
NP
Nattaporn Phukrong
Chiang Mai, IT Consultant

The turnaround was a bit longer than I hoped — I was visiting Bangkok for only a week, so I had to arrange for the watch to be sent back to me, which added some back-and-forth. That aside, the work itself was good. The movement service brought the timekeeping from plus twelve seconds a day down to plus one, which is close enough to the published spec for this calibre. The report showed me the before and after figures, which I appreciated.

April 2025
Modern Automatic Service
WK
Wanchai Kasetsiri
Bangkok, Watch enthusiast

I have used two other workshops in Bangkok for movement services over the years. The difference at Krung Watch is in the paperwork, which sounds minor but is not. Having the timing machine figures from before and after the service gives me something to compare against at the next service interval. The other shops gave me nothing in writing — I was just expected to trust that the work had been done.

March 2025
Modern Automatic Service
SA
Siriwan Aunsamut
Bangkok, Purchasing manager

I used the diagnostic service before deciding whether to buy a pre-owned Omega. The assessment gave me a clear condition report and told me the movement was running well but the mainspring tension was on the lower end of acceptable. That information changed what I was willing to pay for the piece. Worth every baht, and I intend to bring it back for a full service once it is mine.

May 2025
Diagnostic Assessment
TP
Thanakorn Poonpetch
Nonthaburi, Marine engineer

My old Citizen had not been touched in nearly ten years. The full service brought it back to life — it is now running within a few seconds a day, which is more than I expected given the state it was in. They called me before sourcing a replacement crown seal because the original had deteriorated significantly and they wanted to confirm I was happy with a compatible part. I was, and they got on with it.

April 2025
Modern Automatic Service
02. / CASE STUDIES

Three watches, three different situations

CASE 01 / DIAGNOSTIC BEFORE PURCHASE ฿2,800
CHALLENGE

Pre-purchase condition unknown

An owner was considering buying a pre-owned modern automatic from a private seller. The watch was running and looked presentable, but there was no recent service history and the asking price was significant.

APPROACH

Diagnostic assessment carried out

The watch was logged and placed on the timing machine. Rate, amplitude, and beat error were recorded. External condition was noted. The movement was not opened — this was a non-invasive assessment only.

OUTCOME

Informed negotiation possible

The report showed amplitude at the lower end of acceptable and indicated a service would be due within eighteen months at current lubricant degradation rates. The owner used this to negotiate a reduced purchase price and budgeted accordingly for the next service.

"The report told me exactly what I needed to know before I handed over the money."
CASE 02 / FULL MOVEMENT SERVICE ฿4,200 + parts
CHALLENGE

Inconsistent timekeeping after years of wear

A daily-worn automatic was gaining between eight and fifteen seconds per day — variable, which suggested something other than a simple regulation issue. It had last been serviced roughly six years prior at a different workshop, with no documentation.

APPROACH

Full service following disassembly findings

The diagnostic showed amplitude of 205 degrees in the crown-up position — below specification. Disassembly revealed a hairspring that had sustained minor contact with the regulator, likely from a knock. The maker procedure was referenced for lubrication and regulation.

OUTCOME

Rate within specification, documented

After service, the timing machine showed amplitude of 288 degrees and a rate of plus three seconds per day — within published specification for the calibre. The before and after figures were included in the service report along with a note on the hairspring finding.

"They found something the previous workshop had either missed or not looked for."
CASE 03 / WATER RESISTANCE RESTORATION ฿7,500
CHALLENGE

Dive watch with aging seals and unknown current rating

A diver who uses their watch for recreational diving brought in a sports model rated to 200 metres. The watch was five years old and had never had seals replaced. The crown felt slightly less precise than before.

APPROACH

Gasket replacement and pressure testing

All serviceable gaskets were replaced, the crystal seal was inspected and renewed, and the crown was lubricated. A dry pressure test was passed before proceeding to a wet test. The testing was conducted against the case manufacturer's rated parameters.

OUTCOME

Current rating documented, confidence restored

The watch passed the wet pressure test at its rated depth equivalent. The achieved rating was noted on the service record. The owner now has a document with a current date and a specific tested pressure figure — something the original case specification does not provide.

"I can dive knowing the seal integrity was tested last month, not ten years ago when the watch was made."
03. / CONTACT DETAILS

Find the workshop

Address

312 Phayathai Road
Ratchathewi, Bangkok 10400

Hours

Mon–Fri: 10:00 – 18:00
Sat: 10:00 – 15:00
Sun: Closed

04. / NEXT STEP

Ready to bring your watch in?

The diagnostic assessment is the right starting point for most owners. A written report of current condition, with no further obligation to proceed.

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