San Martin SN004 – Men’s Automatic Dive Watch with Ceramic Bezel & Sapphire Crystal

Born for Depth and Precision

The SN004 redefines what a compact diver can be. Every element—from its ceramic bezel to its sapphire crystal—exists for one reason: to master time beneath pressure. It’s the kind of tool watch that doesn’t seek attention but commands it quietly through its presence.

The Essence of Endurance

You feel it immediately—the solid 316L stainless steel, the confident turn of the unidirectional bezel, the luminous hands guiding you through darkness. Each component is built for challenge, shaped for resilience, and refined for style that endures as long as its movement.

Where Heritage Meets Performance

Inside beats the trusted NH35 automatic movement, visible only through its precision. Outside, every surface reflects San Martin’s heritage of mechanical integrity. With 200 meters of water resistance and luminous C3 or BGW9 glow, it’s a diver’s companion built for both ocean and city.

Every Detail Matters

• 38mm 316L stainless steel case with brushed finish
• NH35 automatic movement (self-winding)
• Sapphire crystal with anti-reflective coating
• Ceramic unidirectional bezel with 120 clicks
• Luminous hands and markers: C3 Green or BGW9 Blue light
• 20mm solid stainless steel bracelet with folding clasp and safety lock
• Screw-down crown and case back for superior sealing
• Water resistance: 200m / 20 Bar

Own the Depth

Take control. Above or below the surface, every second becomes a declaration of mastery.

Product Detail

• Movement: NH35 Automatic Mechanical
• Case: 316L Stainless Steel – 38 mm × 13 mm
• Crystal: Sapphire with AR Coating
• Bezel: Ceramic Insert – 120-Click Unidirectional
• Water Resistance: 200 m / 20 Bar
• Lume: SLN C3 Green or BGW9 Blue
• Bracelet: 20 mm 316L Solid Steel
• Clasp: Folding Clasp with Safety and San Martin Logo
• Weight: 140 g

Additional Information

• Style: Sport / Dive Automatic
• Display: Analog – Numberless Dial
• Gender: Men
• Collection: Milsubmariner Series