- Year
- 2026
- Condition
- Excellent
- Set
- Box and papers
- Size
- 39 mm
Set and condition
Complete set
This Royal Oak “Jumbo” Extra-Thin Openworked is accompanied by its original presentation box, warranty card and supporting documentation. The watch and included items are inspected by an expert watchmaker before sale. Additional photographs and video of this piece are available on request.
Original presentation box
Original presentation box and packaging.
Original papers
Warranty card and supporting documentation.
Inspected prior to sale
Reviewed for condition, completeness and functionality. Additional details and photographs are available on request.
Condition photography
Additional close-up images of specific areas are available before purchase.
Overview
18-carat yellow gold, 39 mm
The Audemars Piguet Royal Oak “Jumbo” Extra-Thin Openworked, reference 16204BA.OO.1240BA.01, in 18-carat yellow gold, 39 mm across, with an openworked dial in a matching gold tone. Selfwinding Calibre 7124, with hours and minutes.
The Audemars Piguet Royal Oak “Jumbo” Extra-Thin Openworked, reference 16204BA.OO.1240BA.01, is cased in 18-carat yellow gold, 39 mm across and 8.1 mm high, with a glareproofed sapphire crystal and caseback. Water resistance is rated to 50 m. The dial is the openworked movement itself, finished in a yellow-gold tone, with white gold applied hour-markers and Royal Oak hands filled with luminescent coating. The bracelet is 18-carat yellow gold, on an AP folding clasp.
The movement is Calibre 7124, a selfwinding calibre giving hours and minutes. It is 29.6 mm across and 2.7 mm high, built from 211 parts holding 31 jewels, and runs at 4 Hz (28,800 vph) with a power reserve of 52 hours.
Key details
Design and engineering
- Case18-carat yellow gold, 39 mm across and 8.1 mm high, with a glareproofed sapphire crystal and caseback. Water resistance is rated to 50 m.
- DialThe openworked movement itself, finished in a yellow-gold tone, with white gold applied hour-markers and Royal Oak hands filled with luminescent coating.
- Bracelet18-carat yellow gold, on an AP folding clasp.
Calibre 7124
- Selfwinding
- Hours and minutes
- 29.6 mm across, 2.7 mm high; 211 parts, 31 jewels
- 4 Hz (28,800 vph)
- Power reserve 52 h
The reference
Technical specifications
| Reference | 16204BA.OO.1240BA.01 |
|---|---|
| Collection | Royal Oak |
| Calibre | Calibre 7124 |
| Functions | Hours and minutes. |
| Case dimensions | 39 mm |
| Case material | 18-carat yellow gold |
| Bracelet | Yellow gold, AP folding clasp |
Buying with HYPA
Purchase with confidence
- Original warranty card included, dated 2026
- Free insured delivery within Australia and Hong Kong · elsewhere quoted
- Payment by bank transfer
- Registered Australian dealerHYPA International Pty Ltd · Registered Victorian second-hand dealer, Registration No. SHD-0018017.
- Direct specialist supportSpeak with the HYPA team before, during and after the purchase.
- Rated 5.0 on Google · 11 reviewsFrom clients of HYPA International on Google. Read the reviews
Before you buy
Buying guides
Continue browsing
