SEIKO 6139-8040 JDM Speed Timer Chronograph
- Manufacturer: Seiko
- Model: Seiko 5 Sports 6139-8040 JDM Speed-Timer
- Movement: 6139B
- Diameter: 40×42
- Made: 8/1973
- Strap/Bracelet: blue suede
- Full Service: 5/2025
One of the two dial designs of the Seiko 5 Sports 6139-8040 Speed-Timer, the most desired green dial. Received a full service in 5/2025. Timegrapher results are available, will be sent on request.
This one comes in a nicer (slightly bigger 6139-8002 case) than the original. However, the original case is part of the sale.
