Wittnauer Professional Chronograph 235T
c. 1963-1965; the specific chronograph Longines-Wittnauer submitted for NASA's astronaut-chronograph qualification trials.
1 reference
| Reference | Variant | Years | Dial | Size |
|---|---|---|---|---|
| 235T | NASA astronaut-chronograph trial submission | 1963–1965 | white | 36 mm |