Seiko
Seiko SFJ007 Prospex Speedtimer Solar Chronograph Watch - Black Stainless Steel
Solar-powered chronograph measuring to 1/100 second with LumiBrite visibility and a limited-edition Budapest 2023 caseback
- TypeWatch Repair & Tools
- Solar-powered chronograph eliminates battery changes
- 1/100-second stopwatch captures split-second precision
- LumiBrite hands and markers glow in darkness
- Limited to 4,000 pieces with serial number
- Screwdown caseback engraved with Budapest 2023 logo
Seiko SFJ007 Prospex Speedtimer Solar Chronograph
The Seiko SFJ007 Prospex Speedtimer is a solar-powered chronograph watch built for timing precision. It features a 1/100 second stopwatch function driven by the 8A50 movement and draws power from light. A black stainless steel case and bracelet frame a track-patterned dial with gold chronograph hands and LumiBrite markers. This limited edition commemorates the World Athletics Championship Budapest 2023 with a controlled run of 4,000 pieces, each engraved with a serial number and the event logo on the screwdown caseback.
Collectors and athletes needing certified timing
Buyers who want a watch tied to a specific sporting milestone and a numbered production run will value the Budapest 2023 engraving and the 1/100 second chronograph. The solar movement removes the need for battery changes, suiting daily wear. Those who prefer a simpler three-hand display, a leather strap, or a lower-profile case without subdials should look at other models. The specialised track dial and gold accents also limit versatility with formal attire.
Straightforward strap adjustment and solar charging
The tri-fold push button release clasp allows the bracelet to be opened and sized without tools, while the screwdown caseback keeps the movement sealed. Charging is automatic under any light source; the watch runs continuously with regular exposure. The most common issue is letting the power reserve deplete during long storage, which stops the chronograph and requires a full recharge before the 1/100 second function resumes accurately. Crown and pusher seals must stay clean to maintain water resistance.
Highlights
- Solar-powered chronograph eliminates battery changes
- 1/100-second stopwatch captures split-second precision
- LumiBrite hands and markers glow in darkness
- Limited to 4,000 pieces with serial number
- Screwdown caseback engraved with Budapest 2023 logo
Specifications
| Brand | Seiko |
|---|---|
| Type | Watch Repair & Tools |
Questions about this item
What strap or bracelet does the SFJ007 ship with so I know nothing extra is needed?
It comes on a black stainless steel bracelet with a tri-fold push button release clasp, ready to wear.
Will the 8A50 solar chronograph still charge and run if I keep my older mechanical watches in the same drawer?
Yes, the solar cell charges from any light source and the movement operates independently of other timepieces stored nearby.
How can I confirm the chronograph is measuring 1/100-second intervals correctly after I set it up?
Start the stopwatch; the centre seconds hand and subdial should track hundredths smoothly, and the serial number on the screwdown caseback matches the limited edition record.
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