Purchasing the perfect dive watch is never easy, especially when you’re looking for one that meets your technical standards and budget. Time and again, Seiko has proven that they are a powerhouse when it comes to delivering solid dive watches for amateur and professional divers at a great value. Made possible by Seiko’s collaboration with the Professional Association of Diving Instructors (PADI), the SPB087 model features PADI’s official colors of red and blue to celebrate their partnership for this model. We are honored to have the rare opportunity to offer this Japan Domestic Model (aka “JDM”), which makes it even more special for all your underwater adventures and beyond.
The Prospex models place heavy focus on functionality in rigorous environments like the depths of the oceans. Seiko’s modern dive watch designs have often been inspired by the brand’s iconic dive models such as the reference 6159 from 1968, and the references 6105 and 6309 from the 1970s. The SPB087 takes its design cues from the vintage classic reference 6215 model from the late 1960s, especially apparent from its case design with the curved lugs and strong beveled edges. The case design was well received, so much so that it was carried over to another well-respected modern creation, the Marine Master 300 model (MM300) from the early 2000s.
A true workhorse, the SPB087 lives inside a 44mm stainless steel case with 200 meters of water resistance. The bezel, adorned with PADI’s signature red and blue colorway, rotates with crisp, satisfying clicks for precise recording of elapsed time. Reading the time is easy thanks to the large broad-arrow hour hand and a sweeping center-seconds hand with a LumiBrite pip, which allow for extraordinary visibility in the deepest layers of the sea. The PADI logo is also proudly presented in the center of the dial with the date conveniently placed at three o’clock.
Like with every Seiko movement, the 6R15 caliber powering the SPB087 is built in-house. When we say “in-house,” we mean it. The 6R15 has a power reserve of 50 hours – thanks to its SPRON 510 mainspring, a patented alloy Seiko developed – and sustains itself with the proprietary bi-directional Magic Lever self-winding system the brand invented in 1959. The movement beats at 21,600 vph with manual winding capability and a hack mechanism allowing proper synchronization of the seconds hand.
Finally, the SPB087 comes outfitted with an updated silicone strap that is one of the most supple and comfortable dive straps we have encountered. This new iteration has fewer accordion folds at the lugs and a signed buckle accompanied by a single signed stainless steel keeper. Seriously, you might not want to take it off.
The Prospex Diver SPB087 is available now for $950. Shop the SPB087 and more from Seiko right here in the HODINKEE Shop.


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