About biaojiang
Operating under Panjin Chasing Light Electronic Technology Co., Ltd., the company is driven by engineering innovation and precision manufacturing. With a strong focus on professional watch repair equipment, Biaojiang integrates advanced technology with refined craftsmanship to deliver reliable, industry-grade solutions for watchmakers worldwide.
Through continuous investment in research and development, Biaojiang has earned broad recognition within the industry, contributing meaningful technical advancements to the field of watch servicing and maintenance.
Commitment to Customer Excellence
At Biaojiang, we prioritize transparency and reliability to ensure a worry-free experience for every global customer. By combining a worldwide logistics network with industry-leading payment security and long-term product protection, we guarantee that your investment is supported at every stage of the journey.
Global Shipping
We ship worldwide via our trusted logistics network or your preferred carrier. Our team provides full coordination and documentation support to ensure a seamless delivery process.
Secure checkout
Your security is our priority. We support major global payment methods protected by industry-standard encryption and data safeguards for a 100% secure transaction.
2-Year Limited Warranty
We offer a two-year warranty against manufacturing defects under normal operating conditions.
Customer Reviews
We turn customer insights into action. By analyzing feedback across our global supply chain and product life cycles, we iteratively optimize our processes to provide a more efficient, reliable, and premium experience for our international community.
Product Patents
We believe sustainable value is built through continuous innovation and robust intellectual property protection. Our portfolio includes patents—spanning inventions, utility models, and designs—complemented by 9 Hong Kong design patents. These assets safeguard our technological advancements and maintain our competitive edge in the market.
As we expand internationally, we are implementing strategic patent protections across key regions, including the EU and North America. We are committed to aligning with international regulatory standards and provide CE certification and Declarations of Conformity (DoC) for relevant products in our lineup. Through these protected technologies and our dedication to quality, Biaojiang continues to develop reliable, professional solutions for the global watchmaking industry—both today and for the future.
Company News
Explore the latest milestones in our journey of innovation. From technological breakthroughs and patent updates to global events and industry insights, stay connected with our ongoing commitment to excellence in the watchmaking world.
Upcoming freebies: Fabledom. Tales of trades, feuds and partnerships
It’s unreal, uncanny, makes you wonder if something is wrong, it seems to seek your attention for all the wrong
What Do You Want To Ask？
Frequently Ask Question
What is the scope of the machine testing?
The machine itself has a testing range of (10bar~-0.7bar) However, due to the limitations of domestic air pumps, the maximum output pressure is 8 bar. Therefore, if we use the air pump provided by us, only the tested 8bar~-0.7bar pressure can be achieved.
How long is the waterproof tester warranty, what to do after the warranty expires?
The waterproof tester comes with two- year warranty. If there is a quality problem within one year, the company will provide free maintenance and will undertake the freight and return. If there is a small problem beyond one year, the company will also provide free maintenance, only requiring the freight.
Can the waterproof tester and the dust blower with suction share the same air pump?
Yes, through the three-way connector, one air pump can carry multiple waterproof testers and dust blower with suction at the same time.
How to use the waterproof tester gasket?
Choose the corresponding gasket based on the different sizes of the watch case back to ensure the balance of the watch, so as to test accurately.
Video for Using the Waterproof Tester
What do the top and bottom parts of the waterproof tester's test interface represent?
The top represents negative pressure test, the bottom represents positive pressure test.
The waterproof tester shows insufficient air source pressure
Reason 1: The air pump is not opened.
Reason 2: The output pressure of the air pump is insufficient, adjust the output valve of the air pump.
Reason 3: The air pipeline is not smooth, there may be a bend or foreign objects.
How to pull out the air tube from the waterproof tester?
First, turn off the air pump. Use a dust blower to release the remaining gas. Then press the black ring inward at the position where the air pipe is inserted behind the waterproof tester, and pull out the tube outward at the same time.
The machine cover does not close tightly.
Check whether the seal ring has fallen out, take it out and apply waterproof oil on the surface before putting it back.
Is the data used for each watch in the waterproof tester different?
Yes, you should choose the corresponding test program according to the watch. For example, diving watches should be tested using the “case hardness program,” while regular waterproof watches for daily use can be tested in “safety mode” for testing. Each test program has different air pressure data.
When the test fails, can we find out where the leak location is?
If the positive pressure test fails, you can use the “leak test” program to detect the leak point. After the test is over, put the watch into the water immediately to observe where bubbles emerge. If the negative pressure test fails, you cannot accurately detect the leak point, only detect the waterproof ring.
How to resolve the issue where the watch on the vacuum waterproof tester pops up automatically after closing the box compartment
Check whether the seal ring has fallen out, take it out and apply waterproof oil on the surface before putting it back.
What is the testing principle of the waterproof tester?
Simulate the underwater environment based on air pressure, and detect whether a watch is water-resistance by observing the displacement change of the watch glass. If air enters the watch, it indicates a lack of water resistance, and if no air enters the watch, it means that the water-resistance performance is normal.
How to connect the waterproof tester to the air pump?
Should the waterproof tester be turned off directly when not in use?
You can click “sleep” on the homepage; this will make the cover close automatically and the screen enter sleep mode, which prevents dust from getting in. Click the screen again, and the cover will open. After closing the store at night, you can first click sleep, then turn off the power switch at the back of the water testing machine.
Instructions for Using the Watch Cleaning Machine
Video Tutorial + Digital Manual
What is placed in each station of the watch cleaning machine?
Video Tutorial + Digital Manual
The watch cleaning machine cannot switch workstations.
Closing the door before operating, or shut down and restart the machine.
How often should the solution, distilled water, and alcohol be replaced?
The frequency of replacement depends on the watch’s oil contamination level—there’s no fixed time or number of times. Normally, the solution and distilled water should be replaced after cleaning 5-6 watches. For alcohol, the replacement timing depends on its evaporation level and whether there is dirt in it.
What kind of alcohol is used?
The best purity is above 95%. The higher the purity, the better the dehydration effect.
Which kind of distilled water should be used?
We recommend using distilled water from the Watsons brand.
How to set the cleaning progarm for a watch cleaning machine?
Yes, the watch cleaning machine not only has a drying function, but the first station also features ultrasonic cleaning function.
Instructions for Using the Watch Winder
Video Tutorial + Digital Manual
The watch winder is not working
If the power button does not respond, press and hold the left power button for 5 seconds. Release it after it flashes, then press and hold it again for 5 seconds. Release it once it stays lit. Restart the machine.
The watch winder's claw is stuck
Adjust the silver button at the front to achieve the proper tension. If the watch winder is used continuously for an extended period, you need to maintain the machine.
How to set a timer for a watch winder or make it rotate faster?
Video Tutorial + Digital Manual
The claws of the watch winder won't lock tightly
1. Swap the claw positions with the other claws.
2. Tighten the screws securely.
3. If the issue persists, contact after-sales support.
How to use a Watch Clamp
Video Tutorial + Digital Manual
IInstallation Video for Watchmaker Bench
Video Tutorial + Digital Manual
Differences between the premium edition and standard edition of the watchmaker bench
Video tutorial + PDF Detailed Guide
Does the watchmaker bench include free shipping?
Nationwide free shipping and door-to-door delivery are available. Installation is included for the flagship version of the table: we will arrange a local installer in your area to provide on-site installation, and we will send you the installer’s contact information in advance. You may contact them to schedule the installation time before the table arrives. We cover the installation cost during daytime hours; if evening installation is required, you will need to negotiate the overtime fee directly with the installer. Installation is not included for other versions of the table.
Can the workbench height be adjusted?
The height of the beechwood premium edition and beechwood standard edition can be customized upon request, with a customization lead time of approximately 10 days. The height and length of the pine edition bench can be customized, with a customization lead time of approximately 10 days.
What is a clamp seat used for?
Video Tutorial + Digital Manual
What material is the work bench made of?
Beech Work Bench Table: The tabletop is crafted from imported German beech wood, while drawers and other components utilize solid wood particle board. Environmental compliance reports are available. Pine Repair Table: Entirely constructed from imported New Zealand pine.
Instructions for Using the Dust Blower with Suction
Video Tutorial + Digital Manual
Does the dust blower with suction use one air pump for both blowing and suction?
Yes, the same air pump is used for both blowing and suction, so there’s no need to purchase a negative pressure air pump separately.
How to connect multiple dust blower with suction
Yes, through the three-way connector, one air pump can carry multiple dust blower with suction at the same time.
How to make the parts cabinet
Parts cabinets can be customized to your exact dimensions. Pricing is calculated based on the cabinet’s size, and our designers will plan the cabinet style for you. Production begins upon confirmation.
How to install the parts cabinet
Nationwide free shipping and door-to-door delivery are available. We will arrange for a local technician to perform the installation at your location. We will provide the technician’s contact information in advance. You may contact them to schedule an installation time before the product arrives. We handle daytime installations. If evening installation is required, any overtime fees must be negotiated directly with the technician.
How to Use the Watch Back Case Opener
Video Tutorial + Digital Manual
Differences between the premium edition watch back case opener and the standard edition watch back case opener
The premium edition of the watch back case opener features superior craftsmanship and includes additional blades and accessories compared to the standard version.
Video for Using the Compressor
Video Tutorial + Digital Manual
Video of Connecting the Air Compressor to the Waterproof Tester and Dust Blower with Suction
Video Tutorial + Digital Manual
The air pump does not inflate automatically
On the side of the air pump is an “overload protector” device. Press the black button.
Video for Using the Microscope
Video Tutorial + Digital Manual
What are the types of microscopes
Basic Edition Digital Microscope
● Supports TF card storage for easy data saving;
● Automatic exposure adjustment for easier operation;
● Continuous adjustment of magnification from 10–75 times, adapting to various
observation needs;
● White balance + RGB adjustable color temperature for more realistic image presentation;
● Comes with a 0.5X auxiliary objective lens to expand the field of view;
● Equipped with an adjustable LED ring light to ensure uniform illumination;
● Real-time HDMI output with 1080P high-definition 60fps smooth images.
Standard Edition Digital Microscope
● Supports USB flash drive storage for more convenient file output;
● Features photo and video recording functions to easily document key details;
● Continuous magnification adjustment from 10–75 times, adapting to various observation needs;
● Equipped with a mouse-controlled operating system to enhance interactive intelligence;
● White balance + RGB adjustable color temperature for more realistic image presentation;
● Comes with a 0.5X auxiliary objective lens to expand the field of view;
● Configured with an adjustable LED ring light to ensure uniform illumination;
● Real-time HDMI output with 1080P high-definition 60fps smooth images;
Premium Edition Digital Microscope
● Supports USB flash drive storage for easy data filing;
● One-click photo and video recording;
Mouse operation support, with an intuitive interface and convenient operation;
● Supports continuous optical zoom from 0.6–5.0X;
● White balance + RGB adjustable color temperature for more realistic image presentation;
● Equipped with a 0.5X auxiliary objective lens to expand the field of view;
● Configured with an adjustable LED ring light to ensure uniform illumination;
● Output resolution up to 4K 60fps, allowing every detail of the image to be clearly visible;
● Real-time HDMI output with 1080P high-definition 60fps smooth images;
● Equipped with a new measurement system that supports accurate measurement of point distance,
rectangle, concentric circles, etc.