From across a room, the 116610LN and 126610LN are almost impossible to tell apart: steel Submariner Date, black dial, black ceramic bezel, Oyster bracelet. On the wrist, and on the price tag, they are different watches. If you are shopping for a modern Submariner, this is probably the most important comparison you will make.
The short version
| 116610LN | 126610LN | |
|---|---|---|
| Years | 2010–2020 | 2020– |
| Case | 40 mm, broad “Super Case” lugs | 41 mm, slimmer lugs |
| Movement | Calibre 3135 | Calibre 3235 |
| Power reserve | About 48 hours | About 70 hours |
| Bracelet | Oyster, Glidelock | Oyster, Glidelock, slightly wider |
| Dial | No crown at 6 | Small crown between “Swiss” and “Made” |
| Water resistance | 300 m | 300 m |
| Price pre-owned | Usually lower | Usually higher |
How do the cases differ?
This is the difference you notice first on the wrist. The 116610LN introduced the “Super Case”: the lugs and crown guards were made much broader than on earlier Submariners. It gives the watch a bold, chunky, almost square look. Some people love it; others find it heavy-looking.
For the 126610LN, Rolex increased the diameter to 41 mm but slimmed the lugs back down. The result is a watch that looks more like the classic Submariners of the 1990s, more elegant and tapered, despite being technically larger. Many owners who try both say the 126610LN wears smaller.
How do the movements differ?
The calibre 3135 in the 116610LN is one of Rolex’s most successful movements, used from 1988 until 2020 across the Submariner and Datejust. It is robust, accurate and easy for watchmakers to service. Many were fitted with a blue Parachrom hairspring in later years.
The calibre 3235 in the 126610LN is part of the newer 32xx family. Its Chronergy escapement is more efficient, raising the power reserve to about 70 hours, which means the watch keeps running over a weekend off the wrist. It is certified as a Superlative Chronometer, as is the 3135 in later watches, to within about two seconds per day after casing.
In daily wear both are excellent. The practical benefit of the 3235 is the longer reserve and a longer future of service support.
Which looks better?
It is personal. Buyers who like a strong, tool-watch presence often prefer the 116610LN’s broad case. Buyers who prefer classic proportions usually prefer the 126610LN. The dials, bezels and hands are nearly identical; the small crown at six o’clock on the 126610LN is the easiest dial tell.
How do the bracelets and clasps compare?
Both watches use the Oyster bracelet with solid links, solid end links and the Oysterlock safety clasp with Glidelock, which extends the bracelet by about 20 mm in 2 mm steps without tools. On the 126610LN the bracelet is slightly wider at the case to match the new proportions, and many owners find it a touch more comfortable. Bracelets are not interchangeable between the two models because the end links fit different cases.
The lug width also changed, from 20 mm on the 116610LN to 21 mm on the 126610LN, which matters if you plan to wear the watch on an aftermarket strap: straps are not interchangeable between the two.
How do they feel after a week of wear?
Owners who switch from a 116610LN to a 126610LN often describe the new watch as “lighter-looking” even though it is slightly heavier. The broad lugs of the 116610LN make it feel more like a tool; the 126610LN feels more like a refined everyday watch. The longer power reserve of the 3235 is noticeable if you rotate several watches: take the 126610LN off on Friday evening and it is still running on Monday morning, while a 116610LN will usually have stopped by Sunday.
Which is better value?
The 116610LN usually costs less than a comparable 126610LN, and the gap can be significant depending on the market. For that difference you get a watch that is almost identical from the front, with a proven movement, but without the newer case and the longer reserve. The 126610LN brings a later card date, which may include remaining years of the five-year Rolex guarantee on watches sold since 2015.
If budget matters most, the 116610LN is one of the best-value modern Submariners. If you plan to keep the watch for decades, the 126610LN’s newer movement and more elegant case may be worth paying for. Compare our current 116610LN and 126610LN listings side by side.
What about the 16610 before them?
If you like the slimmer lugs of the 126610LN but want to spend less than either modern model, the five-digit 16610 is worth a look. It has an aluminum bezel instead of ceramic and a lighter bracelet, and it has its own following. Our 16610 guide explains it.
Which one is easier to service and maintain?
Both are straightforward. The calibre 3135 has been serviced by Rolex and independent watchmakers for more than three decades, and parts are plentiful. The calibre 3235 is newer and, at the moment, more of its service work goes through Rolex’s own network. Rolex recommends a full service about every ten years for its current movements; for a dive watch you actually swim with, have the gaskets and water resistance checked more often. Budget for a service if a 116610LN from early in its production has no recent service history, and factor that into the price you pay.
What should you check on either watch?
- Card date and papers. Especially important for the 126610LN, where a recent date means Rolex guarantee coverage may remain.
- Polishing. The 116610LN’s broad lugs show polishing clearly; look for crisp edges between brushed and polished surfaces.
- Bezel. Both use ceramic, which resists scratches but can chip.
- Service history. A 116610LN made early in its run may be due for a service; factor that into the price.
- Glidelock. Check that the extension works smoothly on both.
Which one should you buy?
Choose the 116610LN if you like its bold case, want to save money, or want a discontinued reference with a clear place in Submariner history. Choose the 126610LN if you prefer classic proportions, want the latest movement, and value the longest possible ownership horizon. Either is a watch you can wear every day for decades. For the broader context of every generation, read our Submariner buying guide or browse every pre-owned Submariner.
Frequently asked questions
Is the 126610LN bigger than the 116610LN?
On paper, yes: 41 mm against 40 mm. On the wrist the 126610LN often looks smaller because its lugs are slimmer and more tapered.
Is the calibre 3235 better than the 3135?
It has a longer power reserve, about 70 hours against 48, and a more efficient escapement. The 3135 is still an excellent, very reliable movement that is widely serviceable.
Will the 116610LN go up in value now that it is discontinued?
Discontinued references can attract collector interest, but no one can predict prices reliably. Buy the watch you prefer to wear, in the best condition your budget allows.
Can I tell them apart from the front?
The easiest dial tell is the small Rolex crown between “Swiss” and “Made” at six o’clock on the 126610LN. The case shape, especially the lugs, is the other giveaway.
