Longines Legend Diver - 39mm - Black
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Product Information
Full details
The Longines Legend Diver (39mm, Black) is for enthusiasts seeking a blend of vintage aesthetics and modern diving functionality. Its key benefit is offering a historically inspired yet technically capable timepiece suitable for both underwater adventures and everyday wear. A potential caveat is the 39mm size, which may be smaller than expected for some modern watch wearers accustomed to larger case diameters.
All features
| Colour | Black |
|---|---|
| Dial Size | 39mm |
| Series | Legend Diver |
| Model Part Number | 8670309 |
| Brand | Longines |
Extended Product Information
FAQs
What does the 'internal rotating diving flange' do?
The internal rotating flange is a unidirectional bezel operated by the crown at the 2 o'clock position. It is used to track elapsed time underwater, typically by aligning the '0' mark with the minute hand at the start of a dive to monitor dive duration.
Is the 39mm size suitable for diving?
Yes, the 39mm size is a classic and functional dimension for a dive watch. While larger watches are also popular, 39mm offers a comfortable fit for many wrists and historical accuracy, while still providing excellent legibility and the required 300m water resistance for diving.
How do I care for the black lacquered dial?
The black lacquered dial should be cleaned gently with a soft, dry microfiber cloth to avoid scratches or smudges. Avoid harsh chemicals or abrasive cleaners.
What is the power reserve of the Caliber L888 movement?
The Longines Caliber L888 automatic movement typically offers a power reserve of approximately 72 hours when fully wound.
Can I change the watch strap myself?
Yes, the Longines Legend Diver uses standard 20mm watch straps. You can typically change it yourself with a spring bar tool, or have it done by a jeweler or watch technician.
How often should the water resistance be checked?
It is recommended to have the water resistance of your dive watch checked annually by an authorized service center, especially if it is regularly used for water-based activities.
Troubleshooting
Watch has stopped running
Manually wind the crown at the 3 o'clock position by rotating it clockwise 30-40 times. If the watch is worn regularly, ensure it receives enough movement to keep the automatic mechanism wound. If the issue persists, the watch may require servicing.
Difficulty setting the internal diving flange
Ensure the crown at the 2 o'clock position is unscrewed before attempting to adjust the flange. Once set, securely screw the crown back down to maintain water resistance.
Inaccurate timekeeping
Automatic watches can vary slightly in accuracy. If significant deviation occurs, check for exposure to strong magnetic fields or physical shocks. For persistent inaccuracy, the watch may need regulation by a qualified watchmaker.
Condensation under the crystal
This usually indicates a breach in water resistance. Do not operate the crown or buttons. Take the watch to an authorized service center immediately for inspection and repair to prevent internal damage.
Pros and Cons
Pros
- Authentic vintage design with modern engineering.
- Robust water resistance for actual diving.
- Versatile 39mm size suitable for many wearers.
- High-quality materials like stainless steel and sapphire crystal.
- Reliable automatic movement for consistent performance.
Cons
- Internal bezel operation might require familiarization.
- 39mm case size may feel small for those preferring larger watches.
- Lacquered dial, while beautiful, can be prone to showing fingerprints.
- Limited date display functionality (if applicable to this specific model's interpretation).
Setup, Compatibility & Care
Initial Setup:
- Winding: If the watch has stopped, manually wind the crown (located at 3 o'clock, typically pulled out to the first position) by rotating it clockwise 30-40 times. The internal diving flange is adjusted using the crown at 2 o'clock, which is also typically a screw-down type.
- Setting Time and Date: Pull the crown at 3 o'clock to the outermost position to set the time. If a date function is present, pull the crown to the first position to adjust the date. Always ensure the time is set forward to avoid accidentally engaging the date change mechanism in the wrong direction.
Compatibility:
- The watch is compatible with standard watch straps of 20mm lug width, allowing for customization with leather, rubber, or fabric options.
Care Instructions:
- Water Resistance: After any exposure to salt water or swimming, rinse the watch with fresh water and dry it with a soft cloth. Ensure the crown and case back are securely tightened before exposing the watch to water. Have the water resistance tested annually by an authorized service center.
- Cleaning: Clean the case and bracelet with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials. For the dial, use a microfiber cloth to gently wipe away smudges.
- Movement: Avoid exposing the watch to strong magnetic fields, extreme temperatures, or significant shocks, as these can affect the accuracy of the automatic movement.