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National Jewellers

National Jewellers

Examination Record

Stock no.
NJB0220
Examined
October 2026

Zenith Defy Classic Open El Primero, Steel and 18K Rose Gold (2010)

Zenith

2010 Defy Classic Open El Primero, Steel and 18K Rose Gold

Zenith's Defy Classic Open El Primero chronograph, reference 86.0526.4021/21.M527: a 46.5 mm steel case water resistant to 300 m, a rose gold bezel with raised stars, and a black guilloché dial opened at ten onto the balance of the El Primero 4021SC automatic chronograph, with its 30-minute counter at three and a power-reserve indicator above six. On the steel bracelet with textured rose gold centre links. Comes with its box and warranty card.

Reference
86.0526.4021/21.M527
Serial no.
On file
Year
2010
Condition
Excellent
Case size
46 mm
Case material
Two-tone
Movement
Automatic
Dial colour
Black
Bracelet
Link bracelet
Measurements
Case 46.5 mm
Accompanied by
Box, papers

What we examine

  • Our horologists examine the movement and check serial and reference numbers.
  • The dial, hands, crown, bezel, bracelet and clasp are assessed for consistency with the model.
  • The precious metal is tested by XRF analysis.
  • Condition is assessed on our six-tier grading scale; this piece is graded Excellent.

The piece described on this record was examined and authenticated by National Jewellers before it was offered for sale. We stand behind the authentication of every item we sell.

This record sets out our examination of the piece. It is not an appraisal or a statement of value. National Jewellers is independent and is not affiliated with, authorised by or endorsed by Zenith; brand names are trademarks of their owners. To confirm this record, write to info@nationaljewellers.ca quoting the stock number.