Patek Philippe caliber CH 28-520
Brand: | Patek Philippe |
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Reference: | CH 28-520 |
Movement: | Automatic |
Display: | Analog |
Diameter: | 30.00 |
Jewels: | 29 |
Reserve: | 55 |
Frequency: | 28800 |
Chronograph: | Chronograph, Column wheel |
Hands: | Hours, Minutes |

CH 28-520 description
Stripped down CH 28-520 chronograph functions with hours, minutes and seconds counter. Column wheel. Balance spring is Spiromax.