Rowing Blazers and Seiko are reviving one of their most requested collaborations, and this time you get to choose a side. Two new versions of the Seiko 5 Sports Rally Diver launch Thursday, July 9, at 11am ET on the Rowing Blazers and Seiko websites, priced at $495 each and capped at 2,500 numbered pieces per colorway. It’s the fourth collaboration between the two brands and a return to the Rally Diver design that launched the partnership, built this time with input from Wind Vintage’s Eric Wind, and it comes in two colorways and sizes: a racing green 38mm case and a racing blue 42.5mm case.
Price: $495
Where to Buy: Rowing Blazers
A small number of both will also be available at Rowing Blazers’ New York City location. Offering the watch in two distinct sizes and colorways means collectors who want a smaller everyday case and those who want a larger dive-ready one no longer have to choose between them.
What Changed From the Original
The Rally Diver traces back to Rowing Blazers’ first Seiko collaboration in 2021, and the look goes back further than that, to a 1960s Seiko that Eric Wind has described as the first vintage watch he ever bought and a nod to what his father wore when he was growing up. This fourth release keeps the rally-style checkerboard bezel and the dual Seiko and Rowing Blazers dial signatures from the earlier versions, but it resizes the lineup rather than reworking the design outright.
The green colorway drops to a 38mm case, smaller than the 42.5mm original and closer in scale to a vintage field watch than a modern dive watch. The blue version holds at the larger 42.5mm size, keeping the tool-watch proportions that defined the first Rally Diver. Both run on Seiko’s Cal. 4R36 automatic movement with 100 meters of water resistance, the same workhorse caliber found across the modern 5 Sports line, which means the day-date display and a 41-hour power reserve carry over regardless of case size. Wind Vintage’s Eric Wind, a dealer known for specializing in vintage watches, worked with Rowing Blazers on this round, which tracks with the closer attention to case proportions relative to earlier releases.
The Straps Do Double Duty
Both watches come on Seiko’s usual three-link steel bracelet, and each one adds a nylon NATO-style strap done in the other model’s dial color. Buy the green 38mm and the spare strap is blue; buy the blue 42.5mm and the spare strap is green. It’s a small detail, but it means two distinct looks from a single purchase, no aftermarket strap required.
Swap to the NATO for a casual, sport-leaning look, or keep the bracelet on for something closer to a traditional dive watch silhouette. The strap options are new for this release, and including the second strap in the box means each watch arrives ready to wear two ways.
Price and Availability
Both colorways go live at 11am ET on July 9. Rowing Blazers opened a waitlist ahead of the drop, letting interested buyers sign up before sales opened. That early signal suggests the brands expect demand to outpace the 2,500-piece-per-colorway run once again.
At 2,500 pieces per color, or 5,000 watches total, this is a bigger production than many limited collaborations get, but the Rally Diver name has drawn heavy demand before, and splitting the release across two case sizes could either spread that demand across both drops or concentrate it on whichever colorway reads as the more limited option. Shoppers hoping for the in-person allocation at Rowing Blazers’ New York City store should treat that as a secondary option rather than a guaranteed backup, since foot-traffic releases like this one typically move quickly once the online drop goes live.
Which Colorway to Pick
For readers weighing the two options: the 38mm racing green case wears smaller and closer to an everyday, dress-casual watch, making it the pick for smaller wrists or anyone who wants a Seiko collaboration that doesn’t dominate a shirt cuff. The 42.5mm racing blue case keeps the proportions of the original Rally Diver and reads more like a dedicated tool watch, better suited to wrists that already wear 42mm-plus divers comfortably. Both share the same movement and water resistance rating, so the decision comes down to case size and color preference rather than performance.
Price: $495
Where to Buy: Rowing Blazers
Where Things Stand
Earlier Rowing Blazers x Seiko collaborations have sold out quickly, and returning to the Rally Diver design specifically, rather than introducing a new pattern, suggests the brands are leaning on the release that resonated most with collectors. It also signals that Rowing Blazers sees more value in iterating on a proven design than in taking a swing at a new archival reference this time around.
If you missed the 2021 original, July 9 is the day to decide between the smaller green case and the larger blue one. With only 5,000 made and a $495 sticker, expect at least some to land on the resale market above that once the drop clears, so locking in a waitlist spot makes sense if either colorway is on your list.
Frequently Asked Questions
Is this the same watch as the 2021 Rally Diver?
It’s a new release in the same design lineage. The 2021 SRPG49 was the original Rally Diver; these two 2026 colorways update the case sizes and add a new second strap in a contrasting color.
What movement is inside?
Seiko’s Cal. 4R36 automatic, the same movement used across the Seiko 5 Sports line, with a 41-hour power reserve and a day-date display.
Where can I buy one?
Through rowingblazers.com and Seiko’s website starting July 9 at 11am ET, or in limited numbers in person at Rowing Blazers’ New York City store.
What’s different between the two colorways besides size?
Beyond the 38mm-versus-42.5mm case difference, the two colorways are mechanically identical: same Cal. 4R36 movement, same 100m water resistance rating, same bracelet-plus-NATO-strap bundle. The main decision points are case size and which dial-and-strap color pairing you prefer.
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(as of July 7, 2026 14:46 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
