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Brand: | Valjoux | 
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|---|---|---|---|
| Family: | |||
| Height: | 6.95 mm | ||
| Jewels: | 17 | ||
| Reserve: | hours | ||
| Frequency: | 18000 A/h | ||
| Winding: | Hand winding | ||
| Diameter: | 29.5 mm (13 ligne) | ||
| Rene Kriegbaum Decorated Valjoux 724 | Complications: | 2-Button, 24 Hour Hand, 9-Column Chronograph, Chronograph, Column Wheel Chronograph | |
| Hands: | 12 Hour Chronograph Hand at 6:00, 30 Minute Chronograph Hand at 3:00, Central 24 Hour Hand, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Small Seconds Hand at 9:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Hand-Winding  Clockwise Balance Cock  9-Column Chronograph |
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| Production: – | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
The Valjoux 724 is a hand-winding chronograph movement with GMT function in the Valjoux 72 family. The GMT function uses a central 24 hour hand that can not be adjusted independently and thus requires a rotating bezel to read. Cal. 724 was replaced by the higher-beat rate Cal. Valjoux 729 around 1974.
- Central hours and minute hands
- Central chronograph seconds
- Central 24 hour hand
- 30 minute counter at 3:00
- 12 hour counter at 6:00
- Running small seconds at 9:00
Cal. 724 was used by brands such as Breitling and Wittnauer.
Valjoux 72 Family Movements
| 18,000 A/h No Chronograph | 18,000 A/h No Hour Counter | 18,000 A/h Hour Counter | 21,600 A/h No Hour Counter | 21,600 A/h Hour Counter | |
| Base | Valjoux 23 | Valjoux 72 Valjoux 722 | Valjoux 236 | Valjoux 726 Valjoux 727 | |
| Flyback | Valjoux 230 | Valjoux 720 | Valjoux 235 | Valjoux 725 | |
| Date | Valjoux 234 | ||||
| Triple Date | Valjoux 69 Valjoux 78 | Valjoux 23C | Valjoux 723 Valjoux 72C | Valjoux 730 | |
| Flyback and Date | Valjoux 237 | ||||
| 24 Hour Hand | Valjoux 724 | Valjoux 729 | |||
| Calendar and Moon Phase | Valjoux 89 Valjoux 90 | Valjoux 88 | Valjoux 886 | ||
| Tide Calculator | Valjoux 721 |