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Alpina Men's Swiss Automatic Heritage Seastrong Diver Black Watch, Sapphire Crystal, Power Reserve, 300M Water Resistant Model: AL-525S4H6

  • Based on 21 reviews
Condition: New
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Availability: In Stock.
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Arrives Saturday, Nov 23
Order within 6 hours and 30 minutes
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Description

The Seastrong Heritage model is inspired by the 1960’s professional diver design. This model features an automatic movement with a 60-minute internal turning bezel. It also has a textured black rubber strap, vintage cream and black dial, screw down crown and an engraved caseback to protect the movement from everyday elements. Born from Alpina's experience in building professional diving watches since the 1960's. The Sea strong Diver 300 features all professional diving watch specifications with 30ATM (1000ft) water-resistance, unidirectional turning safety diving bezel, screw-in crown and case-back. Luminous dial and bezel markers.

Package Dimensions ‏ : ‎ 7.8 x 6.3 x 4 inches; 3.84 ounces


Item model number ‏ : ‎ AL-525S4H6


Department ‏ : ‎ mens


Date First Available ‏ : ‎ June 11, 2018


Manufacturer ‏ : ‎ Alpina Watches


Country of Origin ‏ : ‎ Switzerland


Brand, Seller, or Collection Name: Alpina


Model number: AL-525S4H6


Part Number: AL-525S4H6


Item Shape: Round


Dial window material type: Sapphire Crystal


Display Type: Analog


Clasp: Buckle


Case material: Stainless Steel


Case diameter: 42 millimeters


Case Thickness: 12.3 millimeters


Band Material: Rubber


Band size: Men's Standard


Band width: 21 millimeters


Band Color: Black


Dial color: Silver


Bezel material: Stainless Steel


Bezel function: GMT


Calendar: Date


Special features: Second Hand


Item weight: 3.84 ounces


Movement: Automatic


Water resistant depth: 300 Meters


Warranty: Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Stylish Swiss craftsmanship
Bought at Thanksgiving BLack Fri at competitive price. Love the look and feel. Swiss quality and distinctive style apparent. The internal rotating bezel is novel. For swimmers and occasional snorkelers like me it's fine. For serious divers an external rotating bezel is a better choice. But i's a great watch overall that looks dressy and can do 300m under water apparently. Accuracy of time is solid for an automatic. I would say it gains approx 10" per day. Mine came with a black rubber dive strap which I will use in the summer. Meantime I picked up a vintage style steel bracelet for $20 on Amazon that is surprisingly nice. ... show more
Reviewed in the United States on January 16, 2024 by Thomas B Thomas B

  • Great value and sweet watch
Love my alpina it’s a nice timepiece.
Reviewed in the United States on December 20, 2023 by ant ant

  • Nice Watch
Quality! Thanks Amazon
Reviewed in the United States on July 2, 2024 by Happy

  • love this watch
love this watch
Reviewed in the United States on June 8, 2024 by lucian

  • Great!
Elegant, the kind of classic watch that is not flashy and never outdated. Excellent materials and execution. With a water resistance of 300m this is a great buy. A versatile watch- looks good both as a business or as a pool/outdoor watch. As precise as my Longines hydroconquest, clearly a good entry level luxury watch. ... show more
Reviewed in the United States on March 14, 2021 by Cristian Popa

  • Beautiful Old Time Diver
This is a great looking old style diver watch. The inner bezel allows you to measure dive time and the screw down crown prevents it from moving. The watch is pretty compact compared to most modern divers so it does not overwhelm your wrist. I ware the watch daily and would not be concerned taking it diving. I have not tested the watch under water but it is rated for 300 M. Highly recommended. ... show more
Reviewed in the United States on September 24, 2021 by Linus and Luna of Santa Cruz, CA

  • Great Quality
The watch surpassed expectations. However it did arrive with a rubber strap, not a leather strap. I do prefer a rubber strap on a diver watch. The watch is of high quality and I would recommend it to anyone. However, Amazon delivery did not obtain my signature when it arrived. It was just left at the door available for anyone to steal. Again great watch! ... show more
Reviewed in the United States on August 15, 2020 by Mark Holland

  • Quality watch but ruined by date window
This watch has perhaps the most poorly executed date window of any Swiss watch currently in production. The ugly and misaligned placement of the date window totally ruins the watch, and it’s a flaw you notice every time you look down at it. It’s too bad, it’s otherwise an attractive piece with impressive specs at a good price point. ... show more
Reviewed in the United States on February 4, 2021 by Tech Dude

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