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Movement
Automatic
Case material
Steel
Crystal material
Sapphire
Weight
Waterproof
300 m
The Alpina Seastrong Diver 300 Heritage Automatic AL-525G4H6 refers to the original Alpina Diver 10 Seastrong model from 1969 and will especially delight diving watch enthusiasts. However, its features and design make it useful not only for diving but also for everyday wear.
Thesteel bezel houses the AL-525 Swiss mechanical automatic movement (based on the Sellita SW200) with 26 jewels, which operates at a frequency of 28,800 semi-frequencies per hour and features adate display at the 3-4 o'clock position. The clear dial, based on the design of the historic Alpina Diver 10 Seastrong, is protected by a sapphire crystal that is highly scratch-resistant. The iconic model is also reminiscent of the two-crown design, with the crown at position 4 used to set the time and date, while the crown at position 2 can be used to adjust the inner rotating lunette, originally used to determine the decompression time.
The AL-525G4H6 comes with a practical rubber strap and, thanks to its 42mm diameter, fits perfectly on most men's wrists. The water resistance of this watch is 300m, so it is also designed for deep diving.
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| Brand | Alpina |
| Gender | Male |
| Style | Dive, Sports |
| Origin | Swiss |
| Guarantee | 5 years |
| Waterproof | 300 m |
| Movement | Automatic |
| Caliber | AL-525 |
| Movement accuracy in seconds | ±15 s / day |
Power Reserve ![]() |
38 hours |
| Case size | 42 mm |
| Case height | 12,3 mm |
| Case shape | Round |
| Case material | Stainless steel |
| Crystal material | Sapphire |
| Dial | Analog |
| Dial color | Gray |
Threaded lid ![]() |
Yes |
| Strap material | Rubber |
| Strap Width | 21 mm |
| Strap color | Black |
| Date | Yes |
| Functions | Date, Swivel bezel, Screw-on crown |
Screw-on Crown ![]() |
Yes |
Luminescence ![]() |
SuperLuminova hands and indexes |
| Other functions | Inner bezel, 26 jewels, 28800 vibrations/hour. |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 200 CZK on Watch purchase.
Guarantor: Kateřina Žváček
Jiří Štencek
+420 252 252 306
Mo-Th 9-19
Fr-Sa 9-16
info@helveti.eu
The product is included in categories
Alpina is again a step higher for us, a step among traditional watch manufacturers who are characterized by something innovative. Alpina's history dates back to 1883. Nevertheless, it remains a modern brand and the proof is the new models with smartwatches. Alpina has several watchmaking patents and its own solutions: Flyback chronograph, Tourbillon and the perpetual calendar. The brand is very nice to us with its sporty approach.
Helveti.eu is an authorized dealer and specialist of the Alpina brand.
Manufacturer information: Alpina Watch International SA, Rte de la Galaise 8, 1228 Plan-les-Ouates, Switzerland / contact@alpina-watches.com
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With each watch, you will receive a gift of your choice from us. Gifts are graduated according to the value of the order.
From €0 = Cleaning cloth, with which you can polish the glass of a watch.
From €100 = Stroke shortener, you can adjust the watch bracelet to your hand.
From €150 = Helveti canvas bag.
From €150 = Credit card knife.
From €170 = Donut watch case.
From €400 = Parker Jotter.
From €600 = knife Mikov 100-NH-2A blue.
From €1000 = Victorinox Waiter knife with 9 functions.
From €1400 = Watchroll for 2pcs.
From €1650 = Helveti leather watch roll.
From €2000 = Leather travel case.
From €2800 = Leatherman REV.
From €4000 = Wooden watch box Helveti.
From €6000 = Watch winder Helveti black.
And on top of that, a 5-year warranty (You can find the terms of the extended warranty here) and free shipping.
You can view the gifts here: