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Authorised Alpina Retailer
Alpina Seastrong Diver Extreme Automatic Watch
Colour: Blue
· Ref: AL-525N3VE6
£1,795
VAT incl. · Free express delivery
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Colour: Blue
Authenticity
Authorized Alpina dealer
Warranty
Official Alpina warranty
Shipping
Free · DHL Express
Returns
30 days from delivery
Overview
Alpina Seastrong Diver Extreme Automatic Watch with Blue Dial.
The Seastrong collection gathers the Alpina dive watches, each set with a ceramic bezel and luminescent hands. In the Seastrong Diver Extreme Automatic, the Extreme cushion case comes to the Seastrong collection for the first time, 40.5 mm long under a unidirectional notched ceramic bezel. In stainless steel, it measures 39 mm across and 12.65 mm thick.
An AL-525 automatic movement powers the hours, minutes, seconds and a date at 6 o’clock beneath an anti-reflective sapphire crystal.
The dial, in navy blue evoking the depth of the ocean, is worked in the triangle pattern that marks Alpina, inside a matching outer ring, and silver indexes and the hands carry white luminescent treatment. It comes on an integrated navy blue rubber strap measuring 16 mm at the lugs, closed by a push-button folding clasp.
At a glance
- Unidirectional ceramic diving bezel
- AL-525 automatic calibre · Sellita SW200 base · 38-hour reserve
- Date at 6 o’clock
- 16 mm lug width
Specs
Movement
Type
Automatic
Calibre
AL-525
Power reserve
38 Hours
Frequency
28.800 A/h
Jewels
26 jewels
Case
Material
Stainless steel
Diameter
39 mm
Thickness
12.65 mm
Crystal
Anti-reflective Sapphire
Length
40.5 mm
Dial
Color
Blue
Water resistance
Rating
30 atm
Strap
Material
Rubber
Color
Blue
Width
16 mm
Clasp
Type
Folding clasp with push buttons
General
Country of manufacture
Switzerland
Warranty
3 years
Questions & Answers
What is the Seastrong collection built for?
Diving. Seastrong brings together the dive watches of Alpina, built around ceramic diving bezels and luminescent hands. Gottlieb Hauser founded Alpina in 1883, and the brand produces and assembles its movements and watches at its manufacture in Plan-les-Ouates, Geneva.
How do you time a dive with the bezel?
At the start of the dive, align the zero of the bezel with the minute hand. The minute hand then reads the elapsed minutes off the scale, and because the bezel turns only counterclockwise, a knock can only shorten the dive time it shows.
How long does it run when it is not worn?
A full wind delivers about a 38-hour power reserve. Daily wear keeps the mainspring topped up, and after a longer rest in a drawer a few turns of the crown restart it.
Who makes the movement?
Alpina builds the AL-525 on a Swiss Sellita SW200 automatic base, and assembles its watches at its manufacture in Plan-les-Ouates, Geneva, as part of the Frederique Constant group.
How well does the crystal hold up?
Sapphire sits at 9 on the Mohs scale, just below diamond, so few things encountered in normal wear will mark it, and the anti-reflective treatment keeps the dial readable at an angle in bright light.
Still have questions?
Talk to a specialist
Verified Reviews
FAQ
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Your order arrives brand new in its original Alpina packaging, with all official documentation and the Alpina warranty card, stamped and dated by us.
The warranty covers manufacturing defects. It doesn't cover normal wear and tear or accidental damage — and on watches, it doesn't cover straps, bracelets, or batteries.
Questions about a specific piece? Our specialists are happy to help. [Contact our team →]
Questions about a specific piece? Our specialists are happy to help.
Yes — free DHL Express shipping on all UK orders of £400 or more.
- Orders from £150 to £399.99 ship DHL Express for a flat £9.90
- Orders under £150 ship DHL Express for a flat £19.90
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Most in-stock orders arrive within 1-2 working days of dispatch.
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"Check delivery date" — the piece is available to order, but we confirm the exact date with the brand. As soon as you order, we contact the manufacturer and email you an estimated date.
Need something by a specific date? Tell us and we'll check before you buy. [Contact our team →]
You have 30 days from delivery to return your order.
How returns work. Just let us know and we'll email you a prepaid DHL Express return label — you never have to arrange a shipment or pay anything up front. The return cost is deducted from your refund. If the piece arrived damaged or wasn't what you ordered, the return is on us.
Your refund options.
- Credit (issued as a gift card) — processed almost immediately once your return reaches us
- Refund to your original payment method — typically 5–10 working days, depending on your bank
To qualify for a full refund, the piece must:
- Be unused and in perfect condition, with no signs of wear
- Include its original packaging and outer box
- Include all original documentation, accessories, and the warranty card
- Not be engraved or personalised — custom pieces are made to order and can't be returned
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