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Seiko Prospex Speedtimer Mechanical
$995Stock unknown
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Case
- Diameter
- 39.5mm
- Thickness
- 12mm
- Lug-to-lug
- 44.5mm
- Lug width
- 20mm
- Material
- Stainless Steel
- Water resistance
- 200m
Crystal & dial
- Crystal
- Sapphire
- Shape
- Curved
- AR coating
- Anti-reflective coating on inner surface
- Lume
- LumiBrite on hands and index(es)
Movement
- Caliber
- Seiko 6R55
- Type
- Automatic
- Power reserve
- 72h
- Jewels
- 24
Design language
- Case shape
- round
- Dial style
- matte
- Bezel
- fixed
- Bracelet
- lug-attached
- Hands
- baton
AI-detected from the product image
Prospex SPEEDTIMER collection · 11 watches
2 colorways
Market
Retail$995
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Active listings4Across watch forums
Closed · 30d2Asking-price history
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Retail stock & market context
Seiko on the secondhand market
+10.1%
2026 so far · +5.2% to +17.1% · 103 matched watches
In line with the index
Chronographs as a group: +5.9% · 168 matched watches
Year-by-year readings →Similar watches
Community
The Seiko Prospex SPEEDTIMER Mechanical is widely praised for its comfortable 39.5mm case size and appealing matte silver-white dial with LumiBrite indices. Owners find the watch visually attractive and comfortable for daily wear, with the 72-hour power reserve of the 6R55 automatic movement noted as a strength. Some users appreciate the chronograph function for everyday tasks, while others acknowledge it is rarely used by most purchasers. The watch features a countdown bezel and 20 bar water resistance. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its wearability and practical power reserve.
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