Footnotes

百達翡麗，2526型號，精緻黃金自動腕錶，配琺瑯錶盤，1957年。附後補資料庫精萃。

The reference 2526 was launched by Patek Philippe in 1953 and was the company's first self-winding wristwatch. It utilised the new caliber 12'''- 600 AT movement, with the serial numbers starting with 760,000. Research shows that approximately 580 examples were produced, 20 examples in platinum, 30 examples in white gold, 50 examples in pink gold and 480 examples in yellow gold. The Ref: 2526 later became the Ref: 3428, which used the second-generation self-winding movement, calibre 27-460.

There have been four generations of this model:
1st generation: domed screw back, cream enamel dial with applied indexes. The enamel is flared around the holes, which hold the indexes, the central hands and the subsidiary second's hand.

2nd generation: domed screw back, cream enamel dial with applied indexes. The indexes are inlaid in the enamel surface; the enamel is flared around the holes, which hold the central hands and the subsidiary second's hand.

3rd generation which this watch corresponds to: identical to the 2nd generation but with a practically flat screw back. The present lot is an example of this execution.

4th generation: practically flat screw back, cream enamel dial with applied indexes. The indexes are luminescent and inlaid in the enamel surface; the enamel is flared around the holes, which hold the central hands and the subsidiary second's hand

The model is illustrated in Patek Philippe Wristwatches by Martin Huber & Alan Banbery, first edition, pp.168 & 169