Fortis - 638.10.11 Official Cosmonauts Chronograph
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| Brand: | Fortis |
|---|---|
| Family: | Cosmonaut |
| Reference: | 638.10.11 |
| Name: | Official Cosmonauts Chronograph |
| Movement: |
ETA caliber 7750
Hours, Minutes, Small Seconds | Date, Day | Chronograph
|
| Limited: | No |
Case
| Material: | Stainless Steel |
|---|---|
| Bezel: | Rotating, 0-60 (Dive) |
| Glass: | Sapphire |
| Back: | Closed |
| Shape: | Round |
| Diameter: | 42.00 mm |
| Height: | 15.50 mm |
| Lug Width: | 20.00 mm |
| W/R: | 200.00 m |
Dial
| Color: | Black |
|---|---|
| Indexes: | Arabic Numerals |
| Hands: | Stick |
Fortis 638.10.11 description
The ref. 638.10.11 Fortis Official Cosmonauts Chronograph has a stainless steel case of 42mm, housing the proven Valjoux / ETA 7750 movement. Somewhat of a cult classic, this watch and its predecessors have been part of countless space-missions over the last 20 years.

