Reference guide — Ref. 336934
Rolex Sky-Dweller 336934: price and buying guide.
The most mechanically ambitious watch Rolex puts in a steel case — and one of the few modern references where the complication, not the badge, is the reason to buy.
What it actually does
The Sky-Dweller is an annual calendar with a second time zone. It knows the length of every month except February, so it needs correcting once a year rather than five times.
Rolex calls the mechanism Saros, after the astronomical cycle. Rather than a conventional program wheel, it uses a planetary gear train driving the month display through the twelve apertures set around the chapter ring — one small window beside each hour marker, filled in red when that month is current. It is the reason the dial looks almost undecorated until you know what you are reading.
The second time zone is the centre disc, read against the fixed twenty-four-hour ring. Local time is the conventional hands; home time stays on the disc.
Everything is set through the Ring Command bezel. Rotate the bezel to select date, local time or reference time, then use the crown. There is not a single pusher on the case — unusual for a watch with this much going on, and a large part of why it wears like a Datejust rather than a chronograph.
The 336934 specifically
Reference 336934 is the 42 mm white Rolesor Sky-Dweller: an Oystersteel case and bracelet with an 18 ct white gold fluted bezel. It carries the calibre 9002 and is the current generation, introduced alongside the wider Sky-Dweller update.
It is offered on Oyster and Jubilee bracelets and in several dial colours. The bright black dial is the configuration that keeps the complication legible — the month apertures effectively disappear until you look for them, so a genuinely complicated watch still reads at a glance.
The white gold bezel is the detail people miss. Because it is precious metal rather than steel, the 336934 sits above the steel-bezel Sky-Dweller references on price, and the bezel is worth inspecting closely: fluting is easy to damage and difficult to restore.
Where the price sits in 2026
The 336934 has a US list price around $17,750 and a secondary-market value in the region of $23,500 — roughly thirty per cent above retail. That is not unusual for the reference; the Sky-Dweller has traded above list for most of its recent life.
In practice, white Rolesor black-dial examples list between about $21,000 and $25,000 depending on bracelet, year and completeness, with recent full-set listings clustering in the $23,800 to $24,400 range.
That premium over retail is exactly why the AD route is difficult: at list price this watch has a waiting list, and the watches that reach the secondary market carry the difference. If you want one now, the secondary market is the market.
What to check before you buy
Run the calendar. Set it to the end of a thirty-day month and advance it. The date should jump straight to the first and the month aperture should change. An annual calendar that mis-steps is an expensive repair and a strong reason to walk away.
Work the Ring Command bezel. It should index positively and unmistakably between positions. A vague or gritty bezel suggests either a fall or a previous intervention.
Inspect the white gold fluting. Look across it under a light. Flattened or softened flutes mean it has been polished, and refinishing a precious-metal fluted bezel properly is not cheap.
Confirm the reference. 336934 is white Rolesor. 336934 with a steel bezel does not exist; if a listing shows a smooth or steel bezel under that reference, the listing is wrong and you should find out why.
We have a 2025 full-set 336934 with the black dial listed at $21,000 by wire — the bottom of the current market band rather than the middle of it. Full condition report and specification on the listing: Rolex Sky-Dweller, ref. 336934.
Common questions
How much does a Rolex Sky-Dweller 336934 cost in 2026?
White Rolesor black-dial examples generally trade between $21,000 and $25,000 on the secondary market, against a US list price around $17,750. Recent full-set listings have clustered between roughly $23,800 and $24,400.
Why does the Sky-Dweller sell above retail?
Demand at authorised dealers exceeds supply, so most buyers who want one without a waiting list buy on the secondary market — and that market carries the premium. It has traded above list for most of its recent life.
How often do you need to set a Sky-Dweller?
Once a year, at the end of February. The Saros annual calendar automatically accounts for every thirty- and thirty-one-day month; only the short February needs a correction.
Is the Sky-Dweller too big at 42 mm?
It is 42 mm but wears smaller than the number suggests, because there are no pushers and the lug-to-lug is contained. If a 41 mm Datejust fits you, a Sky-Dweller almost certainly will — but try one on rather than taking anyone's word for it.