San Martin · Vintage 6200
Bronze Diver
The San Martin Bronze Diver (SN004-Q-B) is a 38mm vintage-inspired dive watch built in solid CuSn8 bronze with a matte black dial, black ceramic bezel, sapphire crystal, and a no-date layout. San Martin lists PT5000 and SW200 movement options; this draft tracks the SW200 configuration.
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Water res.
Thick
Lug-to-lug
Overview
| Brand | San Martin |
| Reference | SN004-Q-B |
| Collection | Vintage 6200 |
| Category | Dive |
| Price guide | Entry-level · Under $600 |
Full specification
Specs
Case & dial
| Diameter | 38 mm |
| Lug-to-lug | 46 mm |
| Thickness | 13 mm |
| Lug width | 20 mm |
| Water resistance | 200 m |
| Crystal | sapphire |
| Case material | CuSn8 bronze |
| Bezel | unidirectional dive, 120-click ceramic insert |
| Case back | solid |
Movement & furniture
| Type | Automatic |
| Caliber | Sellita SW200-1 → |
| Power reserve | 41 h |
| Jewels | 26 |
| Lume | SLN C3 |
| Strap / bracelet | leather strap with bronze pin buckle |
Bottom line
A compelling bronze-cased entry for buyers who want genuine vintage diver character and a developing patina at entry-level pricing — the compact 38mm case and 46mm lug-to-lug make it genuinely wearable, though the SLN C3 lume and need to confirm the selected PT5000/SW200 movement are honest trade-offs at this price point.
Highlights
- Solid CuSn8 bronze case
- 38mm / 46mm lug-to-lug
- 200m / sapphire with AR coating
- 120-click ceramic bezel
- No-date vintage dial
Who it's for
Buyers on wrists up to about 7.5 inches who want a no-date vintage diver aesthetic without the cost of a Tudor Black Bay Bronze — the compact 38mm case and naturally evolving patina suit anyone drawn to watches that become more individual over years of wear.
Who should skip it
Skip it if you need a date complication, prefer premium BGW9 lume, want a steel bracelet as standard, or aren't prepared for the light maintenance a bronze case demands around chlorine or salt.
Before you buy
- San Martin lists PT5000 and SW200 movement options — confirm which version is selected before ordering
- CuSn8 bronze naturally darkens and develops patina; salt, humidity, and frequent water exposure can accelerate visible color change
- Real-world lume performance depends on application thickness and grade, even though the listed compound is SLN C3
- Stock varies by variant; verify current availability at checkout
FAQ
Is the Bronze Diver automatic or quartz?
The Bronze Diver is automatic. The Sellita SW200-1 winds itself from the motion of your wrist, so it needs no battery. A full wind holds roughly 41 hours, so it keeps running overnight off the wrist; left longer it stops and restarts once you wear or hand-wind it.
What movement does the Bronze Diver use?
The Bronze Diver is powered by the Sellita SW200-1 from Sellita, an automatic caliber with 26 jewels, a 41-hour power reserve, and a 28,800 bph beat rate. Being automatic, it winds from the motion of your wrist and needs no battery.
How water resistant is the Bronze Diver?
The Bronze Diver is rated to 200 m. That is true dive territory: fine for swimming, snorkelling and recreational scuba diving, as well as all daily wear. Whatever the rating, avoid operating the crown or pushers underwater, and have the gaskets checked periodically to keep it reliable.
How big does the Bronze Diver wear?
At 38 mm across with a 46 mm lug-to-lug and 13 mm thick, the Bronze Diver wears as a versatile mid-size watch. Lug-to-lug is the measurement that really decides fit, since it sets how far the case spans the wrist — 46 mm suits most wrists, and smaller wrists especially should check that figure.
How does the bronze case age, and can I control patina development?
CuSn8 bronze develops patina through oxidation and environmental exposure over time; damp, coastal, salty, or humid environments can accelerate visible color changes. Most owners let it evolve naturally, while others clean it periodically depending on the look they want.
Is the PT5000 or Sellita SW200 upgrade worth it for this watch?
San Martin lists PT5000 and SW200 movement options for this model. The Sellita SW200 option offers wider international service availability and Swiss manufacture heritage; the PT5000 is an ETA 2824-style Chinese automatic that can perform similarly in daily use but may have more limited independent service options depending on location.
How does the SN004-Q-B compare to other budget bronze divers?
It delivers a genuine solid-bronze case, ceramic bezel, sapphire crystal, and compact vintage-diver proportions at a much lower price than many Swiss bronze divers; the specification-to-price ratio is the main appeal.
What movement does this Bronze Diver record cover?
San Martin lists both PT5000 and SW200 movement options for the SN004-Q-B. This Watch Brand Index draft tracks the SW200 configuration; confirm the selected movement when buying.
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