Introducing: Seiko Prospex 1968 Heritage Divers GMT SPB519

May 05, 2025

Back in 2023, James Stacey did his quintessential Stacey-est work for A Week On The Wrist with the original Heritage Diver's GMT in green, ref SPB381. Then, just a few months ago, to celebrate the brand's 60th anniversary, it upgraded the watch to 300m of water resistance for a limited edition release with a blue wave dial. Now, that watch has become a general release, not a limited one, in the SPB519. It's a little bit thicker than those 2023 pieces (now 42mm by 13.3mm) to allow that water resistance, but still has the caliber 6R54 movement with hours, minutes, seconds, GMT (in 24-hour independent, aka, "caller" style), and date at 4:30.? The main change here is the sunray brushed silver/white dial with applied hour markers, filled with Lumibrite (same for the hands) and a blue ceramic insert on the unidirectional diving bezel. The watch features a stainless steel bracelet with super-hard coating, a three-fold clasp with push button, a secure lock, and a diving extension/micro-adjustment device with six steps for a 15mm extension. The watch has a three-day power reserve. If all of this is up your alley, you should expect to pay $1,700 when it becomes available in June. What We Think Suppose there's a correct interval between Seiko purchases (and I have to imagine that there is C?one that feeds the beast of owning more and more great affordable watches). In that case, I'm afraid I've probably exceeded that appropriate delta. That is to say, I haven't bought a Seiko in a long time, and I'm kind of itching for one. The new SPB519 is a good reminder of how great Seikos can look and how much value they provide. For me, using a caller-style (independent 24-hour hand) GMT makes this a non-starter. I've got a few of them, and I don't use them in favor of my other GMTs. The movement also isn't particularly accurate (+25 to -15 seconds per day)?and while I tend not to check my watch daily to make sure the accuracy is spot on, this seems like a range that's large enough that I'd notice eventually. This will certainly check the boxes for someone, but at the very least, it's got me cruising the catalog and realizing I never bought that SPB153 I've wanted for a few years, and any sale is a win for the balance sheet at Seiko. The Basics Brand: SeikoModel: Prospex 1968 Heritage Diver's GMTReference Number: SPB519Diameter: 42mmThickness: 13.3mmLug to lug: 48.6mmCase Material: Steel with Seiko's super-hard coatingDial Color: White with blue bezelIndexes: AppliedLume: Lumibrite on hands and markersWater Resistance: 300 metersStrap/Bracelet: Steel bracelet The Movement Caliber: Seiko 6R54Functions: Hours, minutes, seconds, GMT (24 hour independent, aka, "caller" style), dateDiameter: 27.4mmThickness: 5.3mmPower Reserve: 72 hoursWinding: AutomaticFrequency: 21,600 VPHJewels: 24 Pricing & Availability Price: $1,700Availability: June 2025Limited Edition: NoFor more, click here.