Seiko 6139 Chronograph

Seiko 6139 Automatic Chronograph
- Movement: Seiko 6139
  - 17 jewels
  - Hours, minutes, day, date, chronograph seconds and minutes
  - Automatic
- Case: stainless steel
  - 39mm diameter
- Mineral Crystal
- 70 meter water resistant

The Seiko 6139 Automatic Chronograph is legendary. Although they haven't been made for around 25 years, they are so numerous and durable that they are relatively easy and inexpensive to obtain. My opinion is that a 6139 is essential to any watch collection, which is why I bought mine. I chose this model because I like the very classic and clear styling.