From Holden’s Watch Desk research
San Martin SN0144 42 mm
The San Martin SN0144 42 mm is an everyday sports watch from San Martin: a 42 mm 316L stainless steel case, 10.1 mm thick and 49.5 mm lug to lug, with an automatic Miyota 9015 movement and 100 m water resistance.
Going by its 49.5 mm lug to lug, it should sit within the flat top of a wrist of about 6.7 inches (17.1 cm) or larger.
The research has no sourced US price for it.
Specifications
From the research, with the sources for each group of facts. Unknown means no source confirmed it.
| The watch [1][2][3] | |
|---|---|
| Brand | San Martin |
| Reference | SN0144 |
| Category | Everyday / Sport |
| Production | Discontinued |
| Case and size [1][2][4] | |
| Case diameter | 42 mm |
| Lug to lug | 49.5 mm |
| Thickness | 10.1 mm |
| Lug width | 21 mm |
| Case material | 316L stainless steel |
| Crystal | Sapphire with anti-reflective coating (underside per LIW) |
| Water resistance | 100 m |
| Weight | Unknown |
| Movement [1][2][3] | |
| Movement | Miyota 9015, automatic |
| Power reserve | Approx. 42 hours |
| Accuracy | Unknown |
| Bracelet [1][2][4][5] | |
| Bracelet or strap | Solid 316L stainless steel bracelet; current generation five-link with brushed tops and polished outer faces separated by 45-degree chamfers (Timed Reviews)… |
| Clasp | Milled clasp with on-the-fly ratcheting adjustment ('fly adjustable' per official page) |
| Price and warranty (US) [1][2] | |
| List price (US) | Red 42 mm variant: $359 at Long Island Watch (sold out); current JianZhan generation: $408 list / $365 sale direct from San Martin |
| Street price (US) | $320-365 for current-generation new examples (August 2026) |
| Used price (US) | No independent sold-comps captured (August 2026) |
| Warranty | Unknown |
Will it fit?
A watch wears comfortably when its lugs stay on the flat top of the wrist. Here is the 49.5 mm lug to lug against the flat top estimated for common wrist sizes.
| Wrist | Flat top | Fit |
|---|---|---|
| 6 in 15.2 cm | 47 mm | Likely overhangs |
| 6.5 in 16.5 cm | 51 mm | At the edge |
| 7 in 17.8 cm | 55 mm | Comfortable |
| 7.5 in 19.1 cm | 59 mm | Comfortable |
| 8 in 20.3 cm | 63 mm | Comfortable |
Check it against your own wrist An estimate, not a guarantee; how the method works is on the tool page.
What the research found
These are the research’s judgments, scored against Holden’s priorities, not his own words.
Strengths
- Exceptional casework, bracelet, and clasp finishing for the price — repeatedly the headline of independent reviews
- Genuine original design in a brand better known for homages
- 10.1 mm thin with 100 m WR and sapphire — a rare spec combination
- High-beat Miyota 9015 with cheap, permanent service path
Weaknesses
- 49.5 mm lug-to-lug on the 42 mm makes it the hardest-wearing size of the three
- the decisive datum
- No factory service network or formal warranty infrastructure
- Thin resale market; expected recovery only $150-250 against ~$359 retail
Research scores, 0 to 10
| Execution and feel in the hand | 8.0 |
|---|---|
| Design identity | 6.8 |
| Value at a realistic price | 7.5 |
| Long-term ownership | 6.0 |
| Movement and engineering | 6.0 |
| Wearability and proportions | 5.0 |
| Versatility and durability | 6.0 |
| Fit with Holden's collection | 3.0 |
Also on Holden’s list
Other everyday / sport watches on his list.
- Vacheron Constantin Historiques 222 4200H/222J-B935
- King Seiko VANAC Evening Twilight SLA083 SLA083J1
- Vacheron Constantin Overseas Self-Winding 41mm 4520V/210A-B128
- Rolex Land-Dweller 40 White Rolesor 127334-0001
- Cartier Santos de Cartier Large Model WSSA0018
Sources
- San Martin SN0144 JianZhan Gada Watch — official product page sanmartin-watch.com · read August 26, 2026
- San Martin 42mm Dress Watch with Red Degrading Dial SN0144-C longislandwatch.com · read August 26, 2026
- San Martin SN0144-GS/GX/GL Automatic Watch listing amazon.com · read August 26, 2026
- San Martin SN0144 Review — Original Design JianZhan timedreviews.com · read August 26, 2026
- San Martin SN0144 (Jian Zhan) Review — The Best $300 Watch Just Got Better benswatchclub.com · read August 26, 2026
Personal research, not a source of truth. Spotted an error? Email a correction.