San MartinSN0023-G
Homage to the Tissot PRX Powermatic 80 40 mm
about$375
Regular price at the brand's own website, checked 31 Oct 2026. Marketplace prices change often.
We may earn a commission from these official stores, at no extra cost to you. It never affects scores or rankings. Affiliate disclosure
The San Martin SN0023 40 mm Integrated Sport Watch is a homage to the Tissot PRX Powermatic 80 40 mm, with the same 40 mm case size. It uses an automatic movement and is water resistant to 100 m. It costs about $375 at the official store.
Side by side with the original
Compared with reference T137.407.11.091.00. Values marked ≈ are estimates, such as a reviewer's measurement.
| Spec | SN0023-G | PRX (T137.407.11.091.00) | Difference |
|---|---|---|---|
| Case diameter | 40 mm | 40 mm | same |
| Lug-to-lug | 45 mm | Not published | Can't compare |
| Thickness | 10.8 mm | 10.95 mm | −0.15 mm |
| Lug width | Not published | Not published | Can't compare |
| Water resistance | 100 m | 100 m | |
| Movement | Automatic, Miyota 9015 | Automatic, Powermatic 80 | |
| Power reserve | Not published | 80 h | |
| Crystal | Sapphire, aR coating | Sapphire, one antireflective coating on bottom side | |
| Bezel | Fixed polished steel bezel | Stainless steel bezel | |
| Case material | 316L stainless steel | 316L stainless steel | |
| Lume | BGW-9 blue lume | Super-LumiNova on the hands | |
| Bracelet | Quick-release solid 316L stainless steel bracelet, 12-28 mm x 18 mm | Stainless steel, integrated, quick-release | |
| Weight | 133 g | 138 g |
The original
Tissot
PRX
Reference T137.407.11.091.00, prx powermatic 80 40 mm, green honeycomb dial, steel bracelet
- Case
- 40 mm
- Lug-to-lug
- Not published
- Thickness
- 10.95 mm
- Water resistance
- 100 m
- Movement
- Automatic, Powermatic 80
- List price
- $850
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 diameter12 / 12Same size
- Lug-to-lug0 / 8Not published, left out
- Thickness5.7 / 60.1 mm apart
- Lug width0 / 4Not published, left out
Design signatures— / 40
- Angular case flowing into an integrated bracelet14 / 14Angular case whose lugs flow into a solid integrated bracelet.
- Smooth, sloping polished bezel against a brushed case8 / 8Polished bezel sloping toward the dial on a brushed case.
- Thick stick hands3.5 / 7Polished sword-style hands with lume, slimmer than the original's thick sticks.
- Dial with a stamped surface pattern running edge to edge0 / 5Smooth sunray dial.
- Long applied hour markers3 / 3Long applied lume-filled indices.
- Framed date window at 3 o'clock0 / 3No date window.
Functions and materials— / 20
- Complications4 / 8Time only; the original has a date.
- Bezel action4 / 4Fixed bezel, as on the original.
- Case and bezel materials4 / 4316L steel case and bezel.
- Crystal shape and date window4 / 4Sapphire with AR coating, no cyclops.
Movement type— / 10
- Movement type10 / 10Same movement type.
What reviewers and owners say
Reviewers
From 3 reviews we read or watched.
Two reviewers who bought the SN0023 liked the slim case, the clean dial without a date window, the Miyota 9015 automatic with a screw-down crown, and the lume, which one found much stronger than on the quartz original. They disagreed on finishing: one praised the case finish, while the other found the brushing coarser than the original's. Both said the integrated end links push the effective lug to lug to about 52 or 53 mm, so the watch wears long on smaller wrists, with a gap at the case ends. Both found resizing the bracelet awkward, and both found the edges of the links rough or sharp. One missed a textured dial and noted a ghost date position in the movement; the other found the bezel thicker than the original's. A third reviewer, with no supply statement, agrees on the effective lug-to-lug of about 53 mm, the hard-to-resize pinned bracelet and the sharp link edges, and found the lume very strong and the 5 mm crown small but easy to grip.
Good
- Slim 10.8 mm case with a Miyota 9015 automatic
- Clean dateless dial with long applied lume indices
- Screw-down crown
- Polished bezel and finely brushed case
- Hacks and hand-winds, per a reviewer
- Strong BGW-9 lume, per two reviewers
Less good
- About 52 to 53 mm effective lug to lug with the integrated end links
- Bracelet resizing is awkward and leaves a gap at the case on smaller wrists (both reviewers)
- Bracelet link edges feel rough or sharp (three reviewers)
- Ghost date position on a dateless watch (one reviewer)
- Smooth sunray dial; no texture
- Pinned bracelet needs a long, thin pin pusher to resize, per a reviewer
Known quality issues
Each reported by at least two independent sources.
- Three reviewers found the edges of the bracelet links rough or sharp to the touch.
Versions and colours
- Sunray BlueIts own colourway, not on the originalabout $375
- Sunray Blue, no dial logoIts own colourway, not on the originalabout $375
- Sunray BlackIts own colourway, not on the originalabout $375
- Sunray Black, no dial logoIts own colourway, not on the originalabout $375
- Sunray SilverIts own colourway, not on the originalabout $375
- Sunray Silver, no dial logoIts own colourway, not on the originalabout $375
Compare
Sources
Checked 31 Oct 2026. Every figure on this page comes from one of these pages.