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HBD001
Prospex
SPEEDTIMER
SPEEDTIMER
September 2026 Release
Variations
The creation captures the character of a celebrated Speedtimer design from 1972. It brings the thrill of touring to the wrist.
By giving each sub-dial a distinct finish, the legibility of the chronograph function is enhanced. Sky blue accents further improve legibility and help to evoke a sense of passing scenery.
The new case and bracelet are produced using Seiko’s latest watchmaking technologies to create a classic and refined construction. The case features vertical brushed finishing, and the bracelet is designed for comfort on the wrist.
Specifications
Movement
- Caliber Number
- 8R48
- Movement Type
- Automatic with manual winding
- Precision
- +25 to -15 seconds per day
- Power reserve
- Approx. 45 hours
- Jewels
- 34
- Functions
-
- Chronograph with 30 minutes & 12 hours
- Stop second hand function
- Date display
Case/Band
- Case Material
- Stainless steel (super hard coating)
- Case Size
-
Thickness:14.6mm
Diameter:42.0mm
Lug-to-lug:49.5mm - Crystal
- Dual-curved sapphire crystal
- Crystal Coating
- Anti-reflective coating on inner surface
- LumiBrite
- LumiBrite on hands and index(es)
- Clasp
- Three-fold clasp with push button release
- Distance between lugs
- 20
Other Details
- Water Resistance
- 10 bar
- Magnetic Resistance
- 4,800 A/m
- Features
-
- Tachymeter function
- Screw case back
