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Seiko Prospex SPEEDTIMER Mechanical
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
- Hacking
- No
- Hand-winding
- No
- Complications
- Time only
Design language
- Case shape
- round
- Dial style
- matte
- Bezel
- fixed
- Bracelet
- lug-attached
- Hands
- baton
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Prospex SPEEDTIMER collection · 11 watches
2 colorways
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The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.
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