Patek Phillipe 3970 E, Second Series, Rose Gold, 1991, Complete Open Paper
This is a rine and rare 3970 2nd series with opaline dial: chronograph, moon phases, and 24-hour and leap-year indication. Certificate of Origin from prestige Gubelin retailer with blank purchaser name.
Ref. 3970 was first introduced in 1986 and was discontinued in 2004. The watch underwent three transformations. The first change was from a snap solid back to a 2nd series waterproof screw in case back. Patek also introduced a new reference 3971 with a glazed back which was in production for a very short period alongside the 2nd series Ref 3970. Finally, Patek then consolidated the design in the 3rd series with both solid and glazed backs.
The present watch is a rare and elegant 2nd (second series) with a single solid back.
1. The dial is the early production opaline color, as opposed to silver in the later production.
2. The reference number stamped on both the solid and glazed back reads 3970E (which stands for “étanche”, or water proof) instead of the later 3970ER designation.
3. The hallmarks are on the outside of all the four lugs, also a trait normally associated with earlier series. This variation of cases were completely handmade and are more valuable.
4. The moon phase is an old fashioned gold and blue enamel production, as opposed to the modern galvanic printing of the later editions.
5. Finally, the font used throughout the dial is the faint and discreet sans serif.
Manufactured in 1993 (sold in 1994), Calibre CH 27-70 Q nickel-finished lever movement stamped with the Geneva Seal hallmarked, 24 jewels, Gyromax balance, free sprung regulator. The watch shows virtually no signs of wear and comes with the Certificate of origin, a duplicate Patek Archival document, setting stylus, product literature, instruction manual, leather wallet, fitted early striped presentation box.