Q1: Is switching to the ST2130 a cost-cutting move?
A1: No — in fact, the ST2130 costs us slightly more. The change is due to PT5000 shortages. We chose the ST2130 to ensure stable supply, not to reduce costs. Quality remains our priority.
Q2: Is the ST2130 worse than the PT5000?
A3: Not at all — it is simply different, not inferior.
Both the ST2130 and PT5000 are 28,800 high-frequency movements with the same smooth sweeping motion.
What matters: The ST2130 is a proven workhorse with decades of reliability, used by brands worldwide. We regulate each one to -10~+20 sec/day, and it is backed by our 2-year warranty.
Bottom line: You are getting a reliable, precisely regulated movement — full stop.
Q3: I really want the PT5000 movement. When will it be back in stock?
A4: We completely understand — and we wish we had a confirmed date to give you.
Unfortunately, the PT5000 shortage is industry-wide and supply remains unpredictable. At this time, we cannot confidently promise when it will return.
Here is what we can offer instead:
Option A – Wait for PT5000
You are welcome to join our waiting list
We will notify you immediately once stock arrives
No upfront payment required
Option B – Try the ST2130 with complete peace of mind
It is a proven, reliable movement — used by countless brands for years
We regulate each one for accuracy beyond the stated specifications
Full 2-year warranty applies
Our honest advice: If you need a watch now, the ST2130 won't disappoint you. If you're set on the PT5000 and can wait, we'll keep you updated.
Either way, we're here to help
Movement Frequency Comparison Table
A Note on Movement Availability: To ensure consistent quality and timely delivery amid industry-wide shortages, our current production uses the ST2130 movement. A final batch of watches featuring the PT5000 is available for a limited time. Your order may be fulfilled with either the ST2130 or the PT5000 movement, both of which are high-performance and reliable.
Real watch reviews from top bloggers — simply search for the model to view them
San Martin SN0121TD Titanium Diving Watch PT5000 Automatic Movement Watches Grade 5 Titanium 120-Click Waterproof 300m Wristwatch
SN0121T-GA-NH35
Watch Specification:
Model: San Martin sn0121T-GA
Movement: NH35 [Automatic Mechanical Movement]
Case material : Grade 5 titanium
Glass: Sapphire crystal glass, AR coating
Bezel: 120-click unidirectional matte ceramic bezel with BGW9 luminous markers
Dial Color: matte black and matte blue
Luminous: BGW-9 blue light, bezel, hands and markers
Crown: Screw-down crown, with 3D hexagon logo
Case Back: Screw-down case back, brushed finish
Strap: grade 2 titanium, brushed front, polished side bracelet, width 20mm * 16 mm
The maximum wrist size is 19cm. Please contact us for extra links for larger wrists.
Clasp: grade 2 titanium folding clasp with safety, new fly adjustable clasp, with San Martin hexagon logo
Water Resistant: 30Bar=300 meters
Watch Dimension:
39mm in diameter
Open dial: 28.5mm
Lug to Lug 47mm
Thickness 12.8mm(including glass)
Band width 20mm
Weight: 100.5g
SN0121T-GD-PT5000(ST213)
Model: San Martin sn0121T-GD
Movement: PT5000(ST213) [Automatic Mechanical Movement]
Case material : Grade 5 titanium
Glass: Sapphire crystal glass, AR coating
Bezel: 120-click unidirectional matte ceramic bezel with BGW9 luminous markers
Dial Color: matte black and matte blue
Luminous: BGW-9 blue light, bezel, hands and markers
Crown: Screw-down crown, with 3D hexagon logo
Case Back: Screw-down case back, brushed finish
Strap: grade 2 titanium, brushed front, polished side bracelet, width 20mm * 16 mm
The maximum wrist size is 19cm. Please contact us for extra links for larger wrists.
Clasp: grade 2 titanium folding clasp with safety, new fly adjustable clasp, with San Martin hexagon logo
Water Resistant: 30Bar=300 meters
Watch Dimension:
39mm in diameter
Open dial: 28.5mm
Lug to Lug 47mm
Thickness 11.6mm(including glass)
Band width 20mm
Weight: 100.5g
Our Service
Warranty: 2 years
Returns policy: Please check the website “Return / Exchange / Warranty Policy”
Style: automatic watch, dive watch, luxury watch
Package: watch, box, warranty card, user manual
Service: Retail and wholesale support. OEM/ODM available. Please contact the seller if required
MAJOR UPGRADE:
🔥 【Significant Upgrade】Grade 5 Titanium Case
Enhanced from Grade 2 to Aerospace-Grade 5 Titanium
50% Higher Strength while maintaining exceptional lightness
Scratch & wear resistance significantly improved
Ultra-lightweight at only 100.5g - forget the weight on your wrist
PROFESSIONAL FEATURES:
✅ 300M Professional Water Resistance
30BAR pressure rating for serious diving
✅ Full Titanium Construction
Case, bracelet & clasp all in titanium - hypoallergenic & comfortable
✅ BGW-9 Full Lume System
360° illumination on dial, hands & ceramic bezel
✅ Fly Adjustment Clasp
New upgraded clasp for tool-free micro-adjustment
✅ NH35/PT5000(ST2130) Automatic Movement
Reliable workhorse with 41-hour power reserve
PERFECT FOR:
Divers seeking lightweight performance | Those with metal allergies | Business & casual wear
The Ultimate Combination:
"Feather-Light Weight Meets Steel-Like Strength - Grade 5 Titanium Redefines the Professional Dive Watch Experience"
FQA
1. What should I do if there is water inside the watch?
If there is only a small amount of water vapor inside the watch, it will disappear automatically over time. You can also wear the watch upside down on your wrist; after two hours, the water vapor should disappear. If there are water droplets inside the watch, you should have the watch repaired as soon as possible.
2. Special Note:
Fully automatic mechanical watches rely on arm movement for automatic winding, so they must be worn for more than 8 hours a day to ensure timely and accurate operation. Some automatic mechanical watches can also be manually wound to supplement power: with the crown not pulled out, turn it clockwise 15 times. Mechanical watches without manual-winding functionality cannot be powered by manual winding.
3. Warning:
From 8:00 p.m. to 4:00 a.m. the next day, please do not adjust the calendar, weekday, or month quick-set buttons. Otherwise, the calibration may fail, the quick-set buttons may become blocked or damaged, and the movement may be damaged. Mechanical watches should be kept away from televisions, computers, and other devices with magnetic fields to avoid affecting their operation.
Shipping:
1. Dropshipping
We support dropshipping and can send your order directly to your client. Please provide your client’s address when placing the order.
2. Delivery Time
DHL/UPS/EMS: 4–15 days
AliExpress Premium Shipping: 15–20 days
AliExpress Standard Shipping: 24–44 days
China Post Air Mail: 15–60 days
Please note: due to customs procedures, weather conditions, or peak shipping periods such as Christmas, delivery may take longer than expected. Thank you for your patience.
3. Customs Duties or Import Taxes
The list price above does not include any taxes. Buyers are responsible for customs duties or import taxes in their country.
Return Policy
We will issue a full refund if the item you receive is different from the description.
A refund will be issued after we have received the returned goods and confirmed that they are in good condition. Please contact us before returning any item.
Original shipping costs are non-refundable, and return shipping costs are your responsibility.
Thank you for your consideration.
Warranty and Guarantee
1. 12-month warranty — buy with confidence.
2. All items are brand new and have passed strict quality checks.
3. If you are not satisfied after receiving your item and wish to return it, please return it within 3 days for a replacement or refund.
Important
Customers in Russia, please provide your full name and address, as required by the import policy of the Russian Federation.
We provide OEM & ODM services and can also accommodate small-quantity orders. Please contact us if needed.