San MartinSN0020
Homage to the Rolex Explorer
about$384
Regular price at the brand's own website, checked 31 Oct 2026. Marketplace prices change often.
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The San Martin SN0020 is a homage to the Rolex Explorer, with a 39 mm case, 3 mm larger. It uses an automatic movement and is water resistant to 100 m. Its Resemblance Score is 75 out of 100. It costs about $384 at the official store.
Side by side with the original
Compared with reference 124270. Values marked ≈ are estimates, such as a reviewer's measurement.
| Spec | SN0020 | Explorer (124270) | Difference |
|---|---|---|---|
| Case diameter | 39 mm | 36 mm | +3 mm |
| Lug-to-lug | 47.5 mm | ≈ 43 mm | +4.5 mm |
| Thickness | 12.5 mm | ≈ 11.5 mm | +1 mm |
| Lug width | Not published | Not published | Can't compare |
| Water resistance | 100 m | 100 m | |
| Movement | Automatic, YN55 | Automatic, 3230 | |
| Power reserve | Not published | 70 h | |
| Crystal | Sapphire, aR coating | Sapphire | |
| Bezel | Fixed, polished stainless steel | Fixed, polished | |
| Case material | 316L stainless steel | Oystersteel | |
| Lume | BGW-9 on hands and markers | Chromalight | |
| Bracelet | 316L stainless steel bracelet with female end links | Oyster | |
| Weight | 138 g | Not published |
- ≈ Explorer, Lug-to-lug: median of 3 agreeing independent measurements (43 mm); the maker does not publish it.
- ≈ Explorer, Thickness: median of 3 agreeing independent measurements (11.5 mm); the maker does not publish it.
The original
Rolex
Explorer
Reference 124270, 36 mm, black dial
- Case
- 36 mm
- Lug-to-lug
- ≈ 43 mm
- Thickness
- ≈ 11.5 mm
- Water resistance
- 100 m
- Movement
- Automatic, 3230
- List price
- $7,900
Why it scores 75
Proportions and movement are computed from specs. Design details and functions are judged from the brand's official images. How we score
Proportions4.6 / 30
- Case diameter0 / 123 mm apart
- Lug-to-lug0 / 84.5 mm apart
- Thickness4 / 61 mm apart
- Lug width0 / 4Not published, left out
Design signatures40 / 40
- Arabic numerals at 3, 6 and 9 with applied hour markers12 / 12Arabic 3, 6 and 9 with applied baton markers (the brand lists upgraded applied hour markers) and a lumed triangle at 12 in the official images.
- Fixed polished bezel with no rotating function9 / 9Fixed polished bezel with no markings in the official images; the brand lists a polished stainless steel bezel.
- Plain glossy black dial with luminous markers9 / 9The black variants have a plain glossy black dial with lume markers. The light blue variants differ in colour.
- Oyster bracelet with brushed links6 / 6Three-link bracelet with brushed links, folding clasp and female end links in the official images.
- No date window or cyclops4 / 4No date window on any variant.
Functions and materials20 / 20
- Complications8 / 8Time only, no date. The original also has no complication.
- Bezel action4 / 4Fixed bezel, as on the original.
- Case and bezel materials4 / 4316L steel case, bezel and bracelet; the original is steel.
- Crystal shape and date window4 / 4Sapphire with no cyclops and no date window, as on the original.
Movement type10 / 10
- Movement type10 / 10Same movement type.
What reviewers and owners say
Reviewers
From 3 reviews we read or watched.
Reviewers who handled the 39 mm model liked its size, finishing and lume. The domed sapphire crystal, applied indices, milled clasp with micro-adjustment holes and plain caseback were praised for the money, and the BGW-9 lume was described as bright and even. The watch wears compact because of the short lug-to-lug and the female end links.
The criticisms were small. The polished case sides pick up scuffs, and more than one reviewer would have preferred brushed sides. One noted slightly sharp edges. The movement may also differ from the listing: one reviewer found an NH35 in a watch sold as a YN55 model, and another reviewed a version with the ST2130. The dial logo divided opinion.
Good
- Domed sapphire crystal with applied hour markers
- Bright, even BGW-9 lume
- Milled folding clasp with micro-adjustment holes
- Compact lug-to-lug for a 39 mm case
- Choice of movement, including the Swiss SW200
Less good
- Polished case sides scuff easily
- Movement in the box may not match the listing (one reviewer found an NH35)
- Some sharp edges reported on the case
Versions and colours
- Black dialFollows the Explorer 124270 (36 mm, black dial)about $384
- Light blue dialIts own colourway, not on the originalabout $384
- Black dial, no dial logoIts own colourway, not on the originalabout $384
- Light blue dial, no dial logoIts own colourway, not on the originalabout $384
Compare
Sources
Checked 31 Oct 2026. Every figure on this page comes from one of these pages.