The Panerai PAM1226 and PAM1595 are two near-identical Submersible QuarantaQuattro Bianco watches — the PAM1595 is essentially the PAM1226’s successor, and telling them apart takes a keen eye. Both are 44mm steel divers with a crisp white dial, automatic P.900 movement, 300m water resistance and a military-green strap. This guide explains what actually changed between the two and which to buy.
Prices and specifications as at June 2026. Always verify with authorised dealers or trusted sellers.

TL;DR — PAM1226 vs PAM1595
Both are 44mm steel Submersible QuarantaQuattro Bianco watches with a white dial, automatic P.900 movement, three-day power reserve, 300m water resistance and a military-green rubber strap. The PAM1226 is the original, and the PAM1595 is its direct successor — they are extremely close, with differences down to production era and minor detailing. Choose whichever you can find in the best condition at the right price; functionally they deliver the same crisp white-dial Submersible experience.
Table of Contents
- The White-Dial Submersible
- Specifications Side by Side
- What Actually Changed
- Dial & Design
- On the Wrist
- Price & Value
- Who Should Buy Which?
- Final Verdict
- Frequently Asked Questions
The White-Dial Submersible
A white-dialled dive watch is a relative rarity, and Panerai’s Submersible QuarantaQuattro Bianco makes a striking case for it. “QuarantaQuattro” simply means forty-four, referring to the 44mm case, and “Bianco” is the white dial. Against the brushed steel case and military-green rubber strap, the bright dial gives the watch a fresh, sporty, summer-ready look that stands apart from the usual black-dial divers. Both the PAM1226 and PAM1595 are versions of this watch, released a couple of years apart.
Because the PAM1595 is the direct successor to the PAM1226, this is one of the closest matchups in the current Panerai range — closer even than most “old vs new” pairs. If you are choosing between them on the pre-owned or grey market, the practical reality is that you are choosing between two production runs of essentially the same watch. For the broader Submersible picture, our Submersible vs Luminor Marina guide is a helpful companion.

Specifications Side by Side
| Specification | PAM1226 | PAM1595 |
|---|---|---|
| Model | Submersible QuarantaQuattro Bianco | Submersible QuarantaQuattro Bianco |
| Case diameter | 44 mm | 44 mm |
| Case material | Stainless steel | Stainless steel |
| Dial | White, small seconds at 9, date at 3 | White, small seconds at 9, date at 3 |
| Bezel | Unidirectional diving | Unidirectional diving |
| Movement | P.900 automatic | P.900 automatic |
| Power reserve | 3 days (72 hours) | 3 days (72 hours) |
| Water resistance | 300 m (30 bar) | 300 m (30 bar) |
| Strap | Military-green rubber | Military-green rubber |
| Generation | Original | Successor |
What Actually Changed
The honest answer is: very little that you would notice on the wrist. The PAM1595 succeeds the PAM1226 within the same Submersible QuarantaQuattro Bianco family, keeping the 44mm steel case, white dial, P.900 movement, 300m rating and green strap. Differences between such close successive references typically come down to production period, subtle dial or hand detailing, packaging, and availability rather than any meaningful change in size, movement or water resistance. In practical terms, both offer the identical core experience: a crisp white-dial 44mm automatic diver.
That makes this less a decision about specifications and more about which specific watch you can source in the best condition and at the best price. Neither is an “upgrade” over the other in any way that affects daily use.

Dial & Design
Both share the same white dial layout: bold luminous markers and dots, a small running-seconds sub-dial at 9 o’clock, a date window at 3, and the Submersible’s signature graduated diving bezel. The white dial is the star of the show, giving the watch a clean, legible, distinctly sporty character that pairs perfectly with the military-green strap. Whether you are looking at the PAM1226 or PAM1595, the visual identity is the same — and it is one of the more distinctive looks in Panerai’s catalogue.
On the Wrist
At 44mm steel with a rubber strap, both wear as comfortable, sporty, modern divers — substantial without being unwieldy, and lighter than the larger 47mm Submersibles. For more on Panerai sizing, see our size guide. Because the cases and straps are identical, the wearing experience is the same between the two references; the white dial keeps things bright and legible in all conditions.
Price & Value
Since the PAM1595 is the newer reference, it may carry a slightly higher price as the current-generation Bianco, while the superseded PAM1226 can sometimes be found for a little less on the pre-owned market — potentially the better value if you do not mind owning the earlier run of what is essentially the same watch. Condition, completeness and price should drive the decision. For broader context, see our buying guide and Is Panerai Worth It?
Who Should Buy Which?
Buy the PAM1595 if: you want the current-generation Bianco. As the newer reference it is the most up-to-date version of the white-dial Submersible, and buying current can mean a fresher warranty and the latest detailing.
Buy the PAM1226 if: you want the same watch for potentially less money. As the superseded reference it can offer better value pre-owned while delivering an identical core experience — same case, dial, movement and water resistance.
Since neither outperforms the other in daily use, let condition and price decide. Both give you the same distinctive white-dial 44mm Submersible.
Final Verdict
The PAM1226 and PAM1595 are about as close as two distinct references get — the latter is simply the successor to the former. Take the PAM1595 for the current generation, or the PAM1226 for likely better pre-owned value. Either way you get the same crisp white-dial, 44mm steel, automatic Submersible QuarantaQuattro Bianco, so let price and condition make the call.


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