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Seiko announced the Spring Drive Spacewalk Commemorative Edition in September 2009 as a 100-piece limited run planned for early 2010. The production watch was identified as reference SPS005J1. Its defining change from the watch used in space was a screw-in crown, added after the original’s automatic winding mechanism proved effective in space. This is a historical launch, not a new 2026 release.
Why Seiko announced a Spacewalk commemorative watch
The commemorative edition followed the 2008 Spring Drive Spacewalk, a watch Seiko designed for spacewalks and other extravehicular activities. Seiko Museum records that an astronaut successfully used the watch on the International Space Station. Seiko explained that a spring-driven, battery-free approach was relevant to the severe temperature fluctuations of space, where a battery could be damaged or drain unexpectedly. Seiko Museum: Spring Drive Spacewalk
Seiko Design describes Spring Drive as having neither a balance nor a pallet fork and not depending on a battery. Those characteristics are Seiko’s explanation of the movement’s relevance to extreme temperature changes; they do not establish that every Spring Drive watch is certified or intended for spaceflight. Seiko Design: Spring Drive
In its September 2009 announcement, Seiko said astronaut and entrepreneur Richard Garriott had encouraged the commemorative edition as a way to raise awareness of private space exploration. That was Seiko’s stated purpose for the project, not a claim about a measured result. Seiko Watch Corporation, September 2009 press information
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What changed from the spaceflight watch?
Seiko described the screw-in crown as the commemorative model’s sole specification adaptation from the spaceflight watch. The original watch had a non-screw-in crown to make manual winding easier. Seiko said the automatic winding mechanism had operated in space, so the commemorative edition used a screw-in crown to enhance security at the case opening. The original mission watch should not be assumed to have had this crown configuration. Seiko Watch Corporation, September 2009 press information
The planned run was 100 watches. Seiko said each would have a serial number engraved on its case back and come in a customized presentation box. Seiko Watch Corporation, September 2009 press information
Rank #2
- STAINLESS STEEL CASE built to endure with style, making this watch your perfect daily companion
- AUTOMATIC MOVEMENT for seamless precision in every tick of this watch
- SCRATCH-RESISTANT CRYSTAL to maintain a pristine look even with daily wear and tear on your watch
- LUMINESCENT HANDS for effortless readability in low-light conditions, ensuring you never miss a moment with this watch
- WATER RESISTANT DESIGN ensuring your watch is ready for any adventure, rain or shine
Seiko SPS005J1 specifications
Seiko’s March 2010 release sheet identifies the production model as SPS005J1 and lists these specifications. Seiko Watch Corporation, March 2010 release sheet
| Specification | Seiko’s listed details |
|---|---|
| Case | High-intensity titanium; 53.0 mm from 12 to 6 o’clock, 48.7 mm from 3 to 9 o’clock, and 15.2 mm thick |
| Weight | 92.5 g |
| Crystal and water resistance | Sapphire crystal with anti-reflective coating; 10 bar |
| Crown | Screw-in |
| Straps | Ballistic nylon strap with titanium buckle and Velcro fastening, plus an additional elastic nylon strap |
| Movement | Spring Drive Chronograph Caliber 5R86 |
| Functions | GMT hand, date, power-reserve indicator, and chronograph measuring up to 12 hours |
| Movement construction and reserve | 50 jewels, 416 parts, and a stated 72-hour power reserve |
| Edition size | 100 planned pieces, according to Seiko’s September 2009 announcement |
| Reference | SPS005J1, according to Seiko’s March 2010 release sheet |
What did it cost at launch?
Seiko’s March 2010 release sheet gave an approximate recommended retail price of US$28,000. That figure is historical launch context only; it does not establish the watch’s present value or the price of a completed sale. Seiko Watch Corporation, March 2010 release sheet
Rank #3
- STAINLESS STEEL CASE built to endure with style, making this watch your perfect daily companion
- AUTOMATIC MOVEMENT for seamless precision in every tick of this watch
- SCRATCH-RESISTANT CRYSTAL to maintain a pristine look even with daily wear and tear on your watch
- LUMINESCENT HANDS for effortless readability in low-light conditions, ensuring you never miss a moment with this watch
- WATER RESISTANT DESIGN ensuring your watch is ready for any adventure, rain or shine
What collectors should verify on a pre-owned example
The original specifications provide a checklist for assessing whether a listing is represented as an SPS005J1, but they cannot verify a particular watch’s authenticity, condition, or completeness. Check the reference, seller, condition, provenance, whether both specified straps and the presentation box are included, and available servicing records. Do not treat a listing’s asking price or displayed bid as a confirmed market valuation.
Quick Recap
Best Value
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Rank #4
- WATER-RESISTANT: these water-resistant men's dive watches are ISO scuba-approved to depths of 200 meters
- AUTOMATIC: these self-winding, automatic men's watches are powered by your movement, with a power reserve of 41 hours
- LUMIBRITE DISPLAY: this men's dive watch features a highly-legible display with LumiBrite hands and markers
- STAINLESS STEEL: features a durable stainless steel watch case and bracelet, unique case shape resembling teeth, and PADI red and blue colors on its elapsed timing bezel
- 4R36 CALIBER: equipped with the reliable caliber 4R36 automatic movement, this accurate men's watch keeps precise time
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