Worth A Read

History & Significance
The reference 5420 is more important than you think. We will start in the 70s when this watch was introduced. In 1972 Audemars Pget would debut oe of the most important watches in history. With the help of Gerlad Genta, they would create the Royal Oak reference 5402. An ulktra slim sports dress watch housing the caliber 2121. At the same time, partnered with Gerald Genta, they would introudce a dress watch with the same caliber. This Tonneau shaped case was designed by Gerald Genta at the same time as the Royal Oak. We believe the 5420 was the first reference to introduce this model because of the similar reference numbers and the same caliber.
Writer’s Thoughts
This Tonneau Ref. 5420 is one of those quiet pieces that tells a bigger story. To think it shares the same movement and design lineage as the Royal Oak, yet exists in such a refined, understated form, makes it deeply compelling. The warmth of the 18k yellow gold, paired with the champagne brushed dial, gives it a presence that is distinctly 1970s.
Our Promise
Every watch is thoroughly vetted, carefully described with complete transparency, and guaranteed authentic. Each piece is offered in honest condition, ensuring collectors receive a timepiece that reflects both originality and integrity.
Specifications

Brand: Audemars Piguet
Model: Tonneau Ref. 5420
Year: 1970s
Case Material: 18k Yellow Gold
Case Size: 32mm by 37mm, 18mm lug width
Bezel: This case design does not feature a bezel
Dial: Original gold brushed dial with black stick markers
Crystal: Acrylic crystal
Movement: Automatic Caliber 2121
Strap: New lizard strap
Buckle: Generic yellow gold-tone buckle
Contents: Watch only
Condition

Case: Unpolished with typical signs of wear; retains sharp hallmarks and an attractive warm patina.
Crystal: Acrylic crystal in excellent shape, free of chips or cracks.
Dial: Original and untouched gold brushed dial with clean surface and crisp black markers.
Hands: Original black-painted hands in near-perfect condition.
Strap: New lizard strap showing light wear from storage.
Buckle: Generic yellow gold-tone buckle in new condition.

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