Product Description
The BERNY AMT358MS is a full titanium automatic watch built around the genuine Seagull ST1731 movement — a small-seconds, date-equipped automatic caliber from Tianjin Sea-Gull. Solid titanium case, bracelet, and back cover with a sandblasted finish. Sapphire crystal with inner anti-reflective coating. Folding buckle clasp. 40.5mm diameter, 11.8mm thick, 95g, 100m (10ATM) water resistance. Available across 12 dial colour variants.
Key Specifications
| Specification | Details |
|---|---|
| Brand | BERNY |
| Model | AMT358MS |
| Movement | Seagull ST1731 automatic |
| Jewels | 20 |
| Frequency | 21,600 vph |
| Power reserve | ~36-38 hours |
| Functions | Hours, minutes, small seconds (6 o’clock), date |
| Case material | Solid titanium, sandblasted finish |
| Bracelet material | Solid titanium |
| Back cover material | Solid titanium |
| Crystal | Sapphire glass with inner AR coating |
| Case diameter | 40.5mm |
| Lug to lug | 49.5mm |
| Dial window diameter | 35mm |
| Case thickness | 11.8mm |
| Strap width | 20mm |
| Wearable length | 205mm |
| Clasp | Folding buckle |
| Water resistance | 100m (10ATM) |
| Weight | ~95g |
| Variants | AMT358MS-A/B/C/ORG/GN/LB, AMT358M-A/B/C/ORG/GN/LB |
Full Titanium Construction
The case, bracelet, and back cover are all solid titanium, finished with a sandblasted texture for a clean, matte grey appearance. Titanium offers a genuine practical advantage over stainless steel: it’s significantly lighter for an equivalent case volume, while also being more corrosion-resistant and generally better tolerated by sensitive skin. At approximately 95g total, the AMT358MS feels noticeably lighter on the wrist than a comparable stainless steel watch of the same dimensions, without sacrificing the structural durability titanium is known for.
Seagull ST1731 — Genuine Automatic Movement
The ST1731 is a documented automatic movement from Tianjin Sea-Gull, part of the established ST17 movement family. Its layout includes central hour and minute hands, a small seconds sub-dial at 6 o’clock, and a date function — giving the dial a classic, balanced three-register-style layout. Confirmed specifications: 20 jewels, 21,600 vph, with a power reserve of approximately 36-38 hours from full wind. As an automatic movement, it self-winds through wrist motion and can typically be wound manually via the crown if it stops from extended non-wear.
Sapphire Crystal with Inner AR Coating
The crystal is genuine sapphire glass — Mohs 9 hardness, highly scratch-resistant — with an anti-reflective coating applied to the inner surface specifically, which helps reduce internal glare and reflection while keeping the outer surface’s scratch resistance unaffected by the coating layer.
Sporty, Aviation-Inspired Dial Design
The dial uses bold Arabic numerals, a date window, and the small seconds sub-dial positioned at 6 o’clock — a layout that reads as both highly legible and visually structured, drawing on classic aviation and tool-watch dial conventions. Luminous coating on the hands and hour markers supports nighttime and low-light readability; lume colour and tone vary slightly depending on the specific dial version selected, with hands typically glowing blue and markers carrying a warmer luminous effect on certain variants.
Folding Buckle Titanium Bracelet
The solid titanium bracelet closes with a folding buckle clasp for secure, convenient daily wear, matching the case and back cover material throughout for a cohesive, all-titanium build.
100m Water Resistance
Rated 100m (10ATM) — suitable for daily use, handwashing, rain, and swimming. Not recommended for hot water, sauna use, or deep diving; treat the 10ATM rating as confidence for everyday water exposure and swimming rather than a dedicated dive watch certification.
Color Variants
Available across 12 model codes spanning two case finish options (AMT358MS and AMT358M) in six colour accent variants each: A, B, C, ORG (orange), GN (green), and LB (light blue) — giving a wide range of dial and accent combinations across the same titanium case and movement specification.
Related BERNY Watches
For the closest sibling, see the BERNY AMT358M — the same titanium case and Seagull ST1731 movement in a different case finish variant. For other titanium options, see the BERNY AMT163M Titanium Automatic Field Watch (Miyota 8215, 56g), the BERNY AM143M/MD Titanium Pilot Watch (Miyota 8215, flat or domed sapphire), the BERNY T2567MS Titanium Day-Date Watch, and the BERNY T2566M Titanium Field Watch (40g, BGW9 lume). For another Seagull-movement automatic, see the BERNY AM011VM Gold Automatic Watch (Seagull ST1632) or the BERNY AM7110VM and BERNY AM210M (both Seagull ST2130). Browse the full BERNY range for diver, dress, and chronograph options.
FAQ
What movement does the AMT358MS use? The Seagull ST1731 — a genuine automatic movement from Tianjin Sea-Gull with 20 jewels, 21,600 vph, and approximately 36-38 hours of power reserve. It includes small seconds at 6 o’clock and a date function.
Why titanium instead of stainless steel? Titanium is significantly lighter than stainless steel at an equivalent case size, while offering excellent corrosion resistance and being generally well-tolerated by sensitive skin. At approximately 95g, this watch feels noticeably lighter on the wrist than a comparable steel watch of the same dimensions.
Is the crystal genuine sapphire? Yes — sapphire glass with an inner anti-reflective coating, Mohs 9 hardness.
Is it waterproof for swimming? Yes — rated 100m (10ATM), suitable for daily use, handwashing, rain, and swimming. Not recommended for hot water, sauna, or deep diving.
Does the watch need a battery? No — it’s a genuine automatic movement, self-winding through wrist motion, with manual winding available via the crown if needed.
What size wrist does this suit? 40.5mm diameter, 49.5mm lug-to-lug — a versatile everyday case size suiting a wide range of wrist sizes. The bracelet adjusts to a wearable length of approximately 205mm.
Shipping & Delivery
SHIPPING
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
Do you ship worldwide?
Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
What about customs?
We are not responsible for any custom fees once the items have been shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
How long does shipping take?
Shipping time varies by location. These are our estimates:| Location | *Estimated Shipping Time |
|---|---|
| United States | 5-20 Business days |
| Canada, Europe | 5-20 Business days |
| Australia, New Zealand | 5-20 Business days |
| Central & South America | 5-25 Business days |
| Asia | 5-20 Business days |
| Africa | 5-25 Business days |
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.
My tracking says “no information available at the moment”.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
Will my items be sent in one package?
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
RETURNS
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- If you did not receive the product within the guaranteed time (45 days not including 1-3 day processing) you can request a refund or a reshipment.
- If you received the wrong item you can request a refund or a reshipment.
- If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.
We do not issue the refund if:
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of jwlraddicts.com (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of jwlraddicts.com.
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing, you must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
Refunds & Returns
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
- If you received the wrong item you can request a refund or a reshipment.
- If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.
We do not issue the refund if:
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of jwlraddicts.com (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of //jwlraddicts.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
Customer Reviews
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Honestly, this watch feels more expensive than the price. The titanium case and bracelet make it much lighter than a normal steel watch, so it is very comfortable for daily wear. The dial is easy to read, the orange numbers look great, and the lume is strong enough for night use. The bracelet finishing is not luxury-level, but for this price it is very good.
Great as usual
I was surprised by how light this watch is. The full titanium build makes a big difference, especially if you don’t like heavy watches. The automatic movement runs well, the sapphire glass is a big plus, and the 100m water resistance makes it practical for everyday use. The design is sporty but still clean enough to wear with casual or office clothes.