The BERNY AM7081M is a 42mm Miyota 8205 automatic compressor diver — an internal rotating timing ring operated by a dedicated crown, second crown for time and day-date setting, red seconds hand, raised rectangular hour markers, sapphire crystal front and sapphire exhibition caseback, 200m water resistance. Six variants across three dial colours (black, white, yellow) and two strap types (stainless steel bracelet or silicone).
| Specification | Detail |
|---|---|
| Model | AM7081M (silicone) / AM7081MS (steel bracelet) |
| Case diameter | 42mm |
| Case thickness | 14mm |
| Lug width | 20mm |
| Case material | Stainless steel |
| Crystal | Sapphire (front) |
| Caseback | Sapphire exhibition |
| Movement | Miyota 8205 automatic |
| Jewels | 17 |
| Frequency | 21,600 vph |
| Power reserve | ≥42 hours |
| Hacking | No |
| Hand-winding | No |
| Functions | Hours, minutes, seconds, day, date |
| Bezel | Internal rotating — operated by inner crown |
| Date | Day-date window at ~3 o’clock |
| Luminous | Hands and hour markers (green glow) |
| AM7081M weight | 104g (silicone strap, 175mm wearable) |
| AM7081MS weight | 174g (steel bracelet, 190mm wearable) |
| Water resistance | 200m (20 ATM) |
AM7081MS (steel bracelet):
AM7081M (silicone strap):
The yellow dial is the most distinctive — high-contrast sport yellow on a compressor diver is an uncommon combination. The yellow dial with steel bracelet (AM7081MS-YE) or silicone (AM7081M-YE) creates the most assertive wrist presence of the six.
The AM7081M uses the Miyota 8205 — an earlier Miyota caliber than the 8215 used in the AM339M sibling. The specific differences:
| Miyota 8205 | Miyota 8215 | |
|---|---|---|
| Jewels | 17 | 21 |
| Frequency | 21,600 vph | 21,600 vph |
| Hacking | No | Yes |
| Hand-winding | No | Yes |
| Power reserve | ≥42 hours | ≥42 hours |
The 8205 lacks hacking (the seconds hand continues running while you set the time — precise to-the-second setting requires stopping at the correct moment) and hand-winding (you can’t wind the mainspring manually; wrist motion only). For a dive watch worn continuously this is rarely a practical issue. The AM7081M is appropriately priced lower than the AM339M (8215) to reflect the caliber difference.
Same principle as the AM339M Compressor — internal rotating timing ring behind the crystal rather than an external rotating bezel. The dual crown system operates independently: outer crown for time and calendar, inner crown for the timing ring. The internal position protects the timing ring from accidental bumps and provides a sealed architecture consistent with the 200m rating.
The AM7081M shows both the current day of the week and the date simultaneously in a stacked window near 3 o’clock — more information than a date-only window. This is the same complication as the BERNY AM339M but not present on many non-BERNY divers in the range.
| Feature | AM7081M (this page) | AM339M |
|---|---|---|
| Movement | Miyota 8205 (17J, no hack) | Miyota 8215 (21J, hacks) |
| Yellow dial | Yes | No |
| Bezel | Internal rotating | Internal rotating, bidirectional |
| Sapphire back | Yes | Yes |
| Weight silicone | 104g | 113g |
| Price | Lower | Higher |
Choose AM7081M for the yellow dial option and lower price. Choose AM339M for the 8215 with hacking and the bidirectional inner bezel.
The AM7081M is built for:
vs. BERNY AM339M — See comparison table above. AM339M has Miyota 8215 with hacking; AM7081M has Miyota 8205 without hacking at lower price.
vs. Sea Knight SK02 NH35A — Sea Knight uses NH35A at 40mm/200m with external ceramic bezel. BERNY uses Miyota 8205 at 42mm/200m with internal compressor bezel. External vs internal bezel architecture.



























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.
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.
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.
| 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 |
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.
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.
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.
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.
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
We do not issue the refund if:
*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.
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.
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.
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
We do not issue the refund if:
*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.
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.
Great product from Berny!
I love it.
Excelente
An excellent watch!! The Miyota movement works very precisely, 1-2 SEC/day. Quite thick but it has good wrist wear, delivered on time, recommended 100%.
Great timepiece. Sapphire glass, 200m water resistance. Looks even better in person. Grab this on sale and you won't be disappointed! I would definitely buy from this store again. 10 stars!
Very beautiful and according to the specifications.
At first glance, the watch is super!