Alpina
Alpina

Seastrong

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Seastrong

2015

Robust diving watch line with 300m depth ratings and helium escape valve options.

Category
Dive
Designers
In-house design studio
Case materials
Stainless steel
Sizes
44mm
Dial
Black, blue
Crystal
Sapphire
Strap / bracelet
Rubber, steel bracelet
Movements
AL-525 (Sellita SW200-based)
Movement type
Automatic
Power reserve
38 hours
Water resistance
300m
Complications
Date
Key references
AL-525LB4V6 Seastrong Diver 300
Price band
$1,100–$2,000
The house

Alpina

Swiss sport-watch pioneer credited with inventing the concept of the sports watch via its 1938 Alpina 4 anti-magnetic, waterproof, shockproof model.

Founded
1883
Founder
Gottlieb Hauser
Headquarters
Geneva, Switzerland
Signature materials
Stainless steel, titanium
Signature movements
Sellita SW200/SW300-based AL calibers, AL-950 automatic
Notable designers
In-house design studio
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