Patek Philippe Caliber 10-200

Manufacturer	Patek Philippe
Caliber Number	10-200
In-House?	Yes
Movement Type	Mechanical, manual-wind
Lignes	10”’
Diameter	22.5mm
Height	3.65mm
Jewel Count	18 jewels
Beat Rate / Frequency	19,800 bph / 4 Hz
Lift Angle	48 degrees
Power Reserve	~36 hours (unconfirmed)
Regulator	Swan neck style
Hand Count	3 (or 2)
Functions	Central hours; central minutes; small seconds at 6:00 (also available without small seconds in ref: 2501)
Hacking Seconds?	No
Country of Manufacture	Swiss made in Geneve, Switzerland
Known Models	Vintage Patek Philippe Calatrava timepieces (Various refs: 431, 482, 1419, 1458, 1519, 2407, 2408, 2440, 2488, 2496, 2501, 2525, 2527, 2528, 2530, 2546, 2547, 2548, 2549/1, 2549/2, 2573, 3496) (Add your watch to the comments below…)

The Patek Philippe caliber 10-200 is a vintage 3-hander time-only handwound mechanical movement with 19 jewels.

This calibre is said to be produced between 1946~1965, with ~20,000 pieces made.

Movement Text:

The text on the movement varies depending on the reference number and year produced. The text on our example movement (found in a 1950s ref: 2501) reads as follows:

ADJUSTED TO HEAT, COLD, ISOCRONISM & FIVE (5) POSITIONS / No. XXXXXX / PATEK, PHILIPPE & Co. / GENEVE SWISS / EIGHTEEN (18) JEWELS / Geneva Seal / HOX* / 10-200

*HOX is an import customs/tariff code found on Patek Philippe watches that were made for the USA market.

Additional Resources:

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