The Seiko Prospex Speedtimer is a solar-powered chronograph with a silver dial. It runs on Seiko's V192 solar movement. A full charge gives approximately six months of power reserve, and accuracy is ±15 seconds per month.
The case is 41.4mm stainless steel with a curved sapphire crystal that has an inner anti-reflective coating. The hands and indexes use LumiBrite for visibility in low light. A screw case back and a three-fold push-button clasp complete the build.
The chronograph measures up to 60 minutes in 1/5-second increments. The dial also has a 24-hour hand, small seconds, a date display, a power reserve indicator and a tachymeter scale.
- Model
- Seiko Prospex Speedtimer HBJ001
- Dial
- Silver
- Case size
- 41.4mm
- Case material
- Stainless steel
- Crystal
- Curved sapphire with inner anti-reflective coating
- Movement
- Seiko V192 solar chronograph
- Power reserve
- Approximately 6 months when fully charged
- Accuracy
- ±15 seconds per month
- Chronograph
- Up to 60 minutes, in 1/5-second increments
- Functions
- 24-hour hand, small seconds, date, power reserve indicator, tachymeter scale
- Luminescence
- LumiBrite hands and indexes
- Water resistance
- 10 bar
- Magnetic resistance
- Up to 4,800 A/m