San MartinSN0126-GL
Homage to the Rolex Oyster Perpetual Sea-Dweller Deepsea
about$408
Regular price at the brand's own website, checked 31 Oct 2026. Marketplace prices change often.
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The San Martin SN0126-GL 42 mm Helium-Valve Diver is a homage to the Rolex Oyster Perpetual Sea-Dweller Deepsea, with a 42 mm case, 2 mm smaller. It uses an automatic movement. It costs about $408 at the official store.
Side by side with the original
Compared with reference 136660. Values marked ≈ are estimates, such as a reviewer's measurement.
| Spec | SN0126-GL | Deepsea (136660) | Difference |
|---|---|---|---|
| Case diameter | 42 mm | 44 mm | −2 mm |
| Lug-to-lug | 50 mm | Not published | Can't compare |
| Thickness | 13.6 mm | Not published | Can't compare |
| Lug width | Not published | Not published | Can't compare |
| Water resistance | Not published | 3900 m | |
| Movement | Automatic, Miyota 90S5 | Automatic, 3235 | |
| Power reserve | 42 h | 70 h | |
| Crystal | Sapphire, aR coating | Sapphire | |
| Bezel | 120-click unidirectional bezel, Ceramic | Not published | |
| Case material | 316L stainless steel | Stainless steel | |
| Lume | BGW-X1 blue lume on hands and markers | Not published | |
| Bracelet | Solid 316L stainless steel Y-link bracelet, 21 mm x 16 mm | Steel Oyster bracelet | |
| Weight | 174 g | Not published |
The original
Rolex
Deepsea
Reference 136660, steel, d-blue dial, oyster bracelet
- Case
- 44 mm
- Lug-to-lug
- Not published
- Thickness
- Not published
- Water resistance
- 3900 m
- Movement
- Automatic, 3235
- List price
- $15,880
Why it scores as it does
Proportions and movement are computed from specs. Design details and functions are judged from the brand's official images. How we score
Lug-to-lug is neither published nor measured for one of the two watches, so there is not enough data to score.
Proportions— / 30
- Case diameter4 / 122 mm apart
- Lug-to-lug0 / 8Not published, left out
- Thickness0 / 6Not published, left out
- Lug width0 / 4Not published, left out
Design signatures— / 40
- Dial that shades from blue to black (D-Blue)4 / 4Enamel wave-texture dial shading from blue to black (light blue, green and black options too).
- Thick bezel (slimmed down in 2022)5 / 10Wide ceramic bezel with a coin-edge grip; 42 mm case but not the original's very thick bezel.
- Thick domed sapphire crystal4.5 / 9Sapphire with AR coating; the brand does not state doming and the official images do not show it (one reviewer calls it domed).
- Steel Oyster bracelet3 / 6Solid steel bracelet with brushed tops and polished chamfers, Y-link layout rather than the original's three-link Oyster with glidelock.
- Helium escape valve on the case side5 / 5Helium valve visible on the case side in the brand's comparison image.
- Enlarged date window0 / 4No date window.
- Large 44 mm Oyster case1 / 242 mm case, smaller than the original's 44 mm.
Functions and materials— / 20
- Complications4 / 8Time only; the original has a date.
- Bezel action2 / 4120-click unidirectional ceramic bezel; the original's bezel action is not recorded.
- Case and bezel materials4 / 4Steel case with a ceramic bezel insert, as on the original.
- Crystal shape and date window4 / 4Sapphire with AR coating, no cyclops.
Movement type— / 10
- Movement type10 / 10Same movement type.
What reviewers and owners say
We haven't read enough independent reviews of this model to summarise them yet.
Good
- Helium escape valve and 600 m printed on the dial
- Miyota 90S5 high-beat movement with hacking and hand winding
- Ceramic 120-click bezel
- On-the-fly clasp
- Smaller 38 mm version also sold
Less good
- 21 mm lug width and a bracelet that tapers to 16 mm (one reviewer found the taper steep and 21 mm lugs limit strap choice)
- About 55 mm end to end with the bracelet end links (one reviewer)
- No date, unlike the original
Versions and colours
- 42 mm Blue-Black wave dialIts own colourway, not on the originalabout $408
- 42 mm Black wave dialIts own colourway, not on the originalabout $408
Compare
Sources
Checked 31 Oct 2026. Every figure on this page comes from one of these pages.