Description
SEIKO PROSPEX SPEEDTIMER SBDL107
The SEIKO PROSPEX SPEEDTIMER SBDL107 is a Japanese Domestic Market solar chronograph featuring a rich green dial and a compact 39 mm stainless-steel case. Its design inherits the iconic styling of SEIKO SPEEDTIMER chronographs produced during the 1960s and 1970s.
Calibre V192 Solar Chronograph
The watch is powered by SEIKO calibre V192, a solar quartz chronograph movement that converts light into electrical energy. When fully charged, it operates for approximately six months without additional light exposure. Its stopwatch measures elapsed time in 1/5-second increments for up to 60 minutes.
Green SPEEDTIMER Design
The green dial is complemented by contrasting sub-dials, applied hour markers and a tachymeter bezel. The broad hands and indexes are coated with LumiBrite for improved visibility in dark conditions, while the chronograph layout provides clear separation between timekeeping and stopwatch information.
Compact 39 mm Stainless-Steel Case
Measuring 39 mm across and 45.5 mm from lug to lug, the case combines sporty styling with wearable proportions. Brushed and polished surfaces provide visual contrast, while the stainless-steel bracelet tapers toward the clasp for a balanced fit.
Curved Sapphire Crystal
A curved sapphire crystal reinforces the model’s vintage-inspired appearance while offering excellent scratch resistance. An anti-reflective coating on the inner surface helps reduce reflections and improves dial readability.
Key Features
- SEIKO solar quartz calibre V192
- Approximately six months of operation when fully charged
- 1/5-second chronograph with a 60-minute capacity
- Power-reserve indicator
- 24-hour hand and small-seconds display
- Date display
- Green dial with LumiBrite hands and markers
- Curved sapphire crystal with inner anti-reflective coating
- Fixed tachymeter bezel
- 10-bar water resistance
Product Specifications
| Brand | SEIKO |
|---|---|
| Collection | PROSPEX |
| Series | SPEEDTIMER |
| Model | SBDL107 |
| International Reference | SSC933 equivalent |
| Market | Japanese Domestic Market |
| Release Date | 7 October 2023 |
| Edition | Regular production model |
| Country of Manufacture | Japan |
| Watch Type | Solar quartz chronograph |
| Gender | Men’s |
| Dial | Green |
| Calibre | V192 |
| Movement | Solar quartz |
| Accuracy | ±15 seconds per month |
| Operating Time | Approximately six months when fully charged |
| Chronograph | 1/5 second, maximum 60 minutes |
| Additional Functions | Power-reserve indicator, 24-hour hand, small seconds, date and overcharge prevention |
| Case Material | Stainless steel |
| Case Size | 45.5 × 39.0 × 13.3 mm |
| Weight | 161 g |
| Crystal | Curved sapphire crystal |
| Crystal Coating | Anti-reflective coating on inner surface |
| Bezel | Fixed tachymeter bezel |
| Case Back | Screw case back |
| Bracelet | Stainless steel |
| Bracelet Width | 20 mm |
| Maximum Wrist Size | Approximately 197 mm |
| Clasp | Push-button three-fold clasp |
| Water Resistance | 10 bar / 100 m |
| Magnetic Resistance | Yes |
| LumiBrite | Hands and hour markers |
| JAN Code | 4954628465818 |







