Making a luxury watch purchase is a serious investment. It takes time and research, and that process can be confusing if you aren’t an expert. Thankfully, StockX has its finger on the pulse and offers the assurance of a thorough authentication process, offering only the highest quality pre-owned luxury timepieces. Combine this with an outstanding variety from the world’s best watchmakers and it’s a pretty easy decision to rely on StockX for any pre-owned purchase.

We’ve perused what StockX currently has up for bidding and picked four standouts that you’d be smart to check out if you’re in the market for a pre-owned luxury watch.

Patek Philippe Minute Repeater Perpetual Calendar

The holy grail to top all holy grails, Patek Philippe’s Minute Repeater Perpetual Calendar is high-level watchmaking at its finest. The Patek Philippe 5074R has plenty of distinct mechanisms: a perpetual calendar, a minute repeater that produces stunning sounds and an intricate tourbillon escapement to regulate everything. This is the rare type of watch worth saving for your ultimate lifetime milestone. Very few of these were made, so finding one for sale is something that does not happen often.

Rolex Daytona

The Rolex Daytona is arguably the watch that has brought mass-attention to the pre-owned collecting world. And it’s easily the watch to own right now. The Daytona’s 40mm case is encircled by its trademark tachymetric bezel that highlights its lineage to auto racing. Considering the Daytona comes in plenty of references with distinct colorways and details, there’s a Daytona for every watch enthusiast out there.

Audemars Piguet Royal Oak Chronograph

It is not a secret: When it comes to high-end watchmaking, look to the Swiss. For over a century the storied watchmaker Audemars Piguet has challenged horological techniques to blaze new trails with more demanding mechanisms. With its signature octagonal bezel and decorative grand tapisserie pattern dial, there isn’t a more emblematic AP timepiece than the Royal Oak Chronograph. The latest Royal Oak Chronograph has a 38mm case and this 39mm is no longer in production, making this version even more of a gem.

A. Lange & Söhne 1815

While the Swiss are the echelon of watchmaking, Germany’s Glashütte houses a few watchmakers who can rival Swiss precision — A. Lange & Söhne is one of those stalwarts. The 1815 references its founder Ferdinand Adolph Lange’s birth year and features classic German watchmaking with blued hands, Arabic numerals and the railway-track minute scale. The 38.5mm case is fashioned from rose gold and the dial is crafted from solid silver, highlighting the precious materials A. Lange & Söhne consistently uses.