San Martin SN004 V2 Automatic Mechanical Diver Watch User Manual

1. Introduction

Thank you for choosing the San Martin SN004 V2 Automatic Mechanical Diver Watch. This manual provides essential information for the proper setup, operation, and maintenance of your timepiece. Designed for durability and precision, this watch features a robust automatic movement and significant water resistance, making it suitable for various activities, including professional diving.

2. Product Overview

The San Martin SN004 V2 is a 38mm automatic mechanical watch, built with a 316L stainless steel case and a sapphire crystal with anti-reflective coating. It features a 120-click unidirectional ceramic bezel and Super Luminous BGW9 blue light on its hands and hour markers for visibility in low light conditions.

Figure 2.1: Front view of the San Martin SN004 V2 watch with black dial.

Figure 2.2: Angled view showcasing the watch's case and bezel.

Figure 2.3: View of the solid stainless steel case back.

Figure 2.4: Detail of the watch bracelet's flip clasp with San Martin logo.

3. Setup and Initial Operation

3.1 Winding the Watch

Your San Martin SN004 V2 watch is powered by an NH35 automatic mechanical movement. It winds itself through the motion of your wrist. However, if the watch has stopped or has not been worn for an extended period, it may require manual winding to initiate operation.

1. Unscrew the crown counter-clockwise until it pops out to the first position (winding position).
2. Turn the crown clockwise approximately 20-30 times. This will build up a power reserve.
3. Push the crown back in and screw it down clockwise to ensure water resistance.

The NH35 movement has a power reserve of approximately 41 hours when fully wound.

3.2 Setting the Time

1. Unscrew the crown counter-clockwise until it pops out.
2. Pull the crown out to the second position (time setting position). The second hand will stop (hacking feature).
3. Turn the crown clockwise or counter-clockwise to set the desired time.
4. Once the time is set, push the crown back in and screw it down clockwise firmly to maintain water resistance.

3.3 Adjusting the Bracelet

The stainless steel bracelet can be adjusted by adding or removing links. This procedure typically requires specialized tools and is best performed by a qualified watchmaker or jeweler to avoid damaging the bracelet or watch.

4. Operating Your Diver Watch

4.1 Water Resistance (20 Bar / 200 Meters / 660 Feet)

Your San Martin SN004 V2 is designed as a true diving watch with a water resistance rating of 20 Bar (200 meters / 660 feet). This makes it suitable for professional marine activities, serious surface water sports, and skin diving. Always ensure the screw-down crown is fully tightened before exposing the watch to water.

Note: Water resistance is not a permanent condition. Gaskets and seals can degrade over time. It is recommended to have your watch's water resistance checked periodically, especially before engaging in diving activities. Avoid exposing the watch to extreme temperature changes (e.g., hot showers, saunas) as this can compromise seals.

4.2 Unidirectional Ceramic Bezel

The 120-click unidirectional ceramic bezel is a crucial tool for divers to measure elapsed time underwater. It rotates only counter-clockwise to prevent accidental increases in dive time, ensuring safety.

1. Before a dive, align the triangle marker (or zero marker) on the bezel with the minute hand.
2. As time passes, the minute hand will move, indicating the elapsed time against the bezel's markings.

4.3 Super Luminous BGW9 Blue Light

The hands and hour markers of your watch are coated with Super Luminous BGW9 blue light. This material absorbs light energy from bright environments and emits a blue glow in the dark, allowing for easy readability in low-light conditions. The luminescence can last for at least 5 hours after sufficient exposure to light.

Figure 4.1: The watch dial illuminated by Super Luminous BGW9 blue light in darkness.

5. Maintenance and Care

Proper care will ensure the longevity and performance of your San Martin watch.

• Cleaning: Wipe the watch regularly with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and then dry thoroughly. Avoid harsh chemicals or abrasive materials.
• Water Exposure: After exposure to saltwater, rinse the watch thoroughly with fresh water and dry it completely. Ensure the crown is always screwed down before rinsing.
• Temperature: Avoid exposing the watch to extreme temperatures or sudden temperature changes, as this can affect the movement and seals.
• Magnetic Fields: Keep the watch away from strong magnetic fields (e.g., speakers, refrigerators, mobile phones) as magnetism can affect the accuracy of mechanical movements.
• Servicing: Mechanical watches benefit from periodic servicing, typically every 3-5 years, to ensure optimal performance and water resistance. This should be performed by a qualified watch technician.

6. Troubleshooting

Here are some common issues and their potential solutions:

7. Specifications

• Movement: Japan NH35 Automatic Mechanical Movement (24 Jewels, 21,600 bph, Bidirectional Automatic Winding, Second Stop Device)
• Power Reserve: Approximately 41 hours
• Case Material: 316L Stainless Steel
• Case Diameter: 38 mm
• Crystal: Sapphire Crystal with Anti-reflective (AR) Blue Coating on inner surface
• Bezel: 120-Click Unidirectional Ceramic Bezel
• Luminescence: Super Luminous BGW9 Blue Light on hands and hour markers
• Water Resistance: 20 Bar (200 meters / 660 feet)
• Clasp Type: Flip Clasp
• Item Model Number: San Martin-SN007GB-3

8. Warranty and Support

Your San Martin SN004 V2 watch is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your purchase for specific terms and conditions, including the duration of coverage.

For technical support, service, or warranty claims, please contact the authorized retailer or the manufacturer directly. Keep your proof of purchase for any warranty-related inquiries.

Manufacturer: San Martin