Description: We take trades against any of our watches!!! We also buy watches and watch packages. Introducing The Grand Seiko 60th Anniversary Limited Edition Professional Diver’s 600M SLGA001! Spring Drive technology from Seiko has had a long and sometimes arduous history. The technical story begins in the late 1970s, when Yoshikazu Akahane came up with the original idea, and by the time the first Spring Drive was released in 1999, the development effort had produced over 200 patents and many hundreds of prototypes. The first automatic Spring Drive movements came out in 2005 and since then, Spring Drive has appeared in everything from chronographs, to dive watches, to extremely elevated chiming complications. It has also appeared very much dressed for the ball, in Credor and more recently, Grand Seiko watches. For sheer diversity of expression, it is equaled by few other movements. Grand Seiko has just announced the next step in the evolution of Spring Drive technology: the new caliber 9RA5. It seems to be a bit of theme this year for performance upgrades launching in Grand Seiko watches, as we’ve just seen with the new Hi-Beat limited edition, with the caliber 9SA5. 9SA5 is a thinner version of the Grand Seiko Hi-Beat, with an 80-hour power reserve, and the new caliber 9RA5 likewise offers an extended power reserve of up to 5 days, or 120 hours – in a movement 0.8mm thinner than the current 9R65 caliber and which is more tightly regulated as well. The launch platform for the new movement is a new diver’s watch, with a 600 water-resistant “high intensity titanium” case: the SLGA001 Professional Diver’s 600M. This will be the deepest-diving Spring Drive Pro Diver from Grand Seiko – the two current Spring Drive dive watches, SBGA231 and SBGA229 are both rated to 200 meters, with the 600 meter rating reserved for the mechanical SBGH255 which also has a soft iron dial and is antimagnetic to 16,000 A/m. Spring Drive is in many respects an ideal technology for a dive watch – you have quartz watch accuracy, without dependence on batteries (it’s always worth remembering that Spring Drive watches are powered by a mainspring). The new SLGA001 is, not unexpectedly, a burly creature of the deep, at 46.9mm x 16.0mm, but the use of titanium for the case and bracelet should do much to reduce the perceived bulk. Professional dive watches from Seiko generally avoid helium release valves – instead the seals and gaskets are designed to prevent helium gas intrusion in the first place, which is true of the new SLGA001 as well. This makes the watch suitable for use by professional saturation divers. The new caliber 9RA5 incorporates a number of enhancements to the self-winding Spring Drive movements. It seems to be an objective for Grand Seiko to have the potential to produce thinner watches, and while the SLGA001 is a thick watch, the caliber 9RA5 incorporates some changes in construction to allow for a flatter profile. One of these, according to Grand Seiko, is a slight re-positioning of the Magic Lever away from the center of the movement, which allows it to sit flatter under the winding rotor. The Magic Lever system is something of a signature feature of Seiko watches; it’s been around in one form or another since 1959 and is a remarkably simple, robust mechanism. The gear train has also had its layout tweaked and now lies along the central horizontal axis of the movement under a one-piece central bridge. The result is stronger construction and better resistance to shock. The longer power reserve is courtesy of two mainspring barrels which lie in the same plane in the movement (again, this helps keep the movement relatively flat). The two barrels are asymmetrical in terms of size, which allows them to fit in the available space while still offering maximum bang for the buck in terms of energy delivery. Finally, the quartz timing package, which controls the rate of rotation of the Spring Drive glide wheel, now features temperature compensation – again, according to Grand Seiko, this is a first for any Spring Drive movement. Temperature compensation is via a thermal sensor, which is in the same hermetically sealed package as the quartz crystal, in order to ensure the temp reading exactly matches the ambient temp affecting the crystal. Accuracy is improved to ±10 seconds per month maximum deviation from rate, over ±15 seconds per month for a standard Spring Drive caliber. The new movement is a very interesting development. As with Seiko movements in general, Spring Drive calibers have tended to be on the robust side, with more thought given to reliability and sturdiness than to reducing height. At 5.0mm thick we have, in the 9RA5, a Spring Drive caliber which approaches the height of some classic purely mechanical workhorse movements. The ETA 2825, for instance, is 4.8mm thick, to pick just one example. The SLGA001 is a limited edition of 700 pieces globally and it’s a precision-made piece of high-end horological engineering, designed to keep Grand Seiko’s tool watches at the cutting edge of horological innovation. Brand New Nov 2020! Complete Grand Seiko Limited Edition Box Set with all books, Warranty Papers, Additional GS Blue Rubber Strap, Hang Tag, Polishing cloth, etc! Super Limited Edition with the Newest 5 Days GS Movement…Limited Edition #653/700! BRAND: Grand Seiko MODEL: 60th Anniversary Professional Diver 600 Limited Edition SLGA001MOVEMENT: Spring Drive – Cal 9RA5 – 5 Days (120 hours) Power ReserveCASE: High Intensity TitaniumCROWN: Screw-Down CrownSIZE: 47mmLUGS: 24mmDIAL: Grand Seiko Anniversary Blue DialBEZEL: Rotating DiverCONDITION: Pre-Owned - Excellent! - Warranty dated Nov 2020!BOXES/PAPERS: Yes/Yes: Complete Grand Seiko Limited Edition Box Set – comes with everything as shown in pictures!WATER RESISTANCE: – 600mSTRAP/BRACELET: – 2 – Original Grand Seiko Titanium Bracelet with all links & Additional Grand Seiko Blue Rubber strap with buckle. Trades welcome!! We buy similar watches...large packages as well as one at a time. We also take trades against any of our watches... Let us know what you have in your collection!! I consider all watches in trade! Please upload pictures of your trades through the eBay message system! I will only complete deals here through eBay to protect both buyer and seller! Thanks, Norm eBay likes it if you upload your pictures here on eBay through this message system...if you do from your phone there is a little camera icon to click on and add pics...from your computer there is a tab above the message field that you can click on and addd. They allow up to 5 pictures total... Thank you! Ordering WatchesWe sell on a first-come, first-served basis.Buyers with fewer than 5 transactions or with accounts newer than 30 days must contact us.The Sutor House is not responsible for customs duties when shipping to countries other than the US. Please make sure you understand your country's duties before placing an order. We will work with you when filling out the commercial documents to try and make it as painless as possible, however, we do not refund duties or VAT. Please email us before making your purchase.We are Authorized Dealers for Gruppo Ardito Watch, Cavenago Watches, & Vintage VDB. We are not authorized dealers for the other brands we sell, and there are no implied warranties. However, many watches may include a warranty certificate and may be covered under manufacturer warranty...please contact us to see if the watch you are interested in has one. Finally, With more than a decade in selling, trading and buying watches throughout the globe, there is an etiquette to this sport; "what's your bottom/best price" doesn't fit and is obnoxious. Yes, it makes the rest of us talk about you. Don't be that guy... that guy is ignored. THE SUTOR HOUSE is proud to have been selected by eBay to participate in their GUARANTEE AUTHENTICITY Program! For more details please click this link: https://pages.ebay.com/authenticity-guarantee/?showVid=false&showShopCTAs=false PLEASE NOTE: EFFECTIVE OCT 2019, PAYPAL DOES NOT REIMBURSE THEIR TRANSACTION FEES WHEN PROCESSING A REFUND. THEREFORE, IF YOU CHOOSE PAYPAL TO MAKE YOUR PAYMENT AND WISH TO RETURN A WATCH FOR ANY REASON, THEIR FEES WILL NOT BE REFUNDED TO YOU. I GLADLY ACCEPT PAYMENT WITH BANK TRANSFER, ZELLE, VENMO, CASH APP, ETC. Note: I ship via Fedex with signature required. Signature required to make sure the package gets into the right hands and avoids it being taken from your front door. If you will not be home during normal Fedex delivery hours and either cannot or will not make arrangements to pick up the package from Fedex, DO NOT BUY MY WATCH! I refuse to be held accountable because you ?have a day job? and refuse to take accountability for receiving the package. Secure delivery is my #1 priority and it should be yours as well. Thank you.
Price: 8995 USD
Location: Pompano Beach, Florida
End Time: 2024-12-19T17:47:49.000Z
Shipping Cost: 50 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Movement: Mechanical (Automatic)
Water Resistance: 600 m (60 ATM)
Seller Warranty: Yes
Year Manufactured: 2020-Now
With Papers: Yes
Reference Number: Does Not Apply
Brand: Grand Seiko
Water Resistance Rating: 600 m
Department: Men's
Caseback: Solid
Type: Wristwatch
Band Material: Titanium
Customized: No
Dial Color: Blue
Model: Grand Seiko Sport
Style: Luxury
With Original Box/Packaging: Yes
Case Size: 47 mm
Features: Date Indicator, Limited Edition, Luminous Hands, Luminous Indexes, Power Reserve Indicator, Sapphire Crystal, Screwdown Crown, Seconds Hand, Self-Winding, Splash Proof, Water-Resistant, Date, Rotating Bezel
With Manual/Booklet: Yes
Case Material: Titanium
Country/Region of Manufacture: Japan
Display: Analog