Reference
Audemars Piguet Royal Oak
Reference 4100BA · 18k Yellow Gold
The lowest current ask for the Audemars Piguet Royal Oak (ref. 4100BA) is $47,500 at Material Good, among 3 live listings we track. The auction record is $22,500 (Christie's New York, 2020). Updated October 2, 2026. View lowest ask →
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About this reference
The Audemars Piguet Royal Oak reference 4100BA was produced from the late 1970s through the 1980s as the first mid-sized execution of the model line. Collectors target this 18k yellow gold reference for its 35mm case diameter, which offers a traditional alternative to the larger "Jumbo" proportions. It features the self-winding Calibre 2123, a movement derived from the Jaeger-LeCoultre 889. The construction includes an integrated bracelet and a monobloc case design consistent with the original Gérald Genta aesthetic. Most examples feature the "Petite Tapisserie" dial pattern with an applied AP logo at 12 o'clock. On the secondary market, the 4100BA typically trades between $35,000 and $55,000 depending on condition and the presence of original paperwork. A notable production detail is the transition from "Audemars Piguet" script to the block logo on later dials, which influences specific collector preferences for early-series aesthetics.
Auction track record
1 documented sale since 2020. Top hammer $22,500 at Christie's New York in 2020. Median hammer: $22,500.
Ranks #64 of 65 Audemars Piguet auction lots we track — see all Audemars Piguet records.
Live inventory matching this reference
Audemars Piguet
Audemars Piguet Royal Oak 4100BA
Ref. 4100BA · 18k Yellow Gold
$55k
Audemars Piguet
Audemars Piguet Royal Oak 4100BA
Ref. 4100BA · 18k Yellow Gold
$48k
Audemars Piguet
Audemars Piguet Royal Oak 4100BA Grey Dial
Ref. 4100BA · 18k Yellow Gold
$48k
Audemars Piguet
Audemars Piguet Royal Oak | REF. 4100BA | 35mm | Tropical Br
Ref. 4100BA · 18k Yellow Gold
$38k
Sold · archive
Audemars Piguet
Audemars Piguet Royal Oak 'No. 1' | REF. 4100BA | 35mm | Gol
Ref. 4100BA · 18k Yellow Gold
$32k
Sold · archive
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All documented hammer prices
For this reference (and close variants).
| Lot | Year | Hammer | Venue |
|---|---|---|---|
| 4100BA · Royal Oak | 2020 | $22,500 | Christie's New York |