Monochrome Watches
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The Alpina Seastrong Diver Extreme Automatic

A compact and powerful fusion of an Extreme case with the Seastrong’s certified diving capacities.

| By Rebecca Doulton | 2 min read |

Once upon a time, Alpina clearly demarcated between its Alpiner collection geared for land adventures and its Seastrong models designed for underwater exploration. In 2022, Alpina beefed up its Alpiner sports watch with a powerful 200m water-resistant Extreme case with new embossed dial textures. Today, the brand fuses the distinctive Extreme cushion-shaped case with the 300m diving capacity of its Seastrong family to introduce the Seastrong Diver Extreme Automatic.

Alpina’s Seastrong family, represented by its 42mm Heritage models and professional divers like the 44mm Gyre, welcomes the new cushion-shaped Extreme case with its more compact dimensions.

Sporty to the core and fully compliant with the ISO 6425 dive watch standard, the resilient Seastrong Diver Extreme Automatic models have 39mm stainless steel cases with a length of 40.4mm and a thickness of 12.65mm. To emphasise the burly architecture of the three-part case, it is finished with sporty brushed surfaces and dynamic polished bevels.

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The notching on the unidirectional ceramic bezel is distinctive and is formed of 12 large notches. Safeguarding the 300m water-resistance, the crown with its rubber grip and the caseback are screwed down. The six screws on the bezel, a distinctive feature of the Extreme case, are now positioned on the caseback. Designed to endure knocks and blows, the left side of the case has a protective bumper that visually balances the crown guards on the right, and the ceramic bezel is resilient to scratches.

Offered in three dial colours – black, navy blue and grey – the only one fitted with an integrated steel bracelet is the grey model. The black dial with a bright orange flange and the navy blue dial come with a textured rubber strap matching the dial colour. The embossed triangular pattern of the Extreme is featured on all three models, although the indices are inherited from the Seastrong family. With an inverted triangle at noon and a combination of round and rectangular indices, all the applied markers are treated with luminescent material, like the partially openworked hour and minute hands. The date is displayed in a rectangular aperture at 6 o’clock against a white background.

The Seastrong Diver Extreme is powered by the AL-525 automatic movement (Sellita SW200-1 base), which has a 28,800 frequency and a relatively limited power reserve of 38 hours.

The price of the two models with rubber straps is CHF 1,995 – the official price of the integrated steel bracelet version will follow. For more information, please consult

3 responses

  1. Once I made a mistake and paid 900 Eur for a wat h with upgraded version of this movement. 2000 for this one sounds like a joke.

  2. Agree with last responders
    I recently purchased watch for $600 with Sellita 200-1 elaborated grade. (Running +2 to +3 for first two weeks out of the box) It’s replaced my daily wear which had been consistent at +14 as long as I kept at fully wound. Was the base model in a watch I paid $500 for. At the least Alpina should offer an upgrade option.

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