Seiko 5 Sports GMT Automatic Watch - SSK001K1

This watch is rated for 100 meters (10 ATM) of water resistance. This makes it suitable for everyday use, showering, swimming, and snorkeling. However, it is not designed for scuba diving or prolonged underwater activities. Always ensure the crown is fully pushed in before any water exposure.

Hardlex is a proprietary hardened mineral crystal developed by Seiko. It offers good resistance to impacts and shattering, outperforming standard mineral glass. While durable, it is generally less scratch-resistant than sapphire crystal.

The Caliber `4R34` is an automatic mechanical movement that powers itself through the natural motion of your wrist. As you wear the watch, an oscillating weight inside moves and winds the mainspring. It also supports manual winding by turning the crown and has a 'hacking' function, which stops the second hand for precise time setting.

The GMT hand rotates once every 24 hours. Once your main time is set, the GMT hand will be synchronized. To track a second time zone, you rotate the 24-hour bi-color bezel to align its markers with the GMT hand, indicating the time in your desired second zone. You can track a third time zone by noting the difference between your main hands and the bezel's 24-hour markers.

LumiBrite is Seiko's proprietary luminous material used on the hands and markers. It absorbs light energy (from natural or artificial light) and glows brightly in the dark for an extended period, ensuring excellent legibility in low-light conditions.

The Seiko 5 Sports GMT Automatic Watch has a power reserve of approximately 41 hours. This means that once fully wound, the watch can run for about 41 hours without needing to be worn or manually wound.

Yes, the stainless steel 'beads of rice' bracelet is adjustable. It features removable links that can be added or removed to achieve the perfect fit for your wrist. It is recommended to have a professional jeweler or watchmaker perform these adjustments.

As an automatic watch, it needs to be worn for several hours a day or manually wound. Wind the watch manually by rotating the crown clockwise while it's in the pushed-in position (about 40-50 turns). If the issue persists, ensure it hasn't been exposed to strong magnetic fields or sustained a hard impact.

The GMT hand tracks a 24-hour cycle. First, ensure your main time is set correctly (AM/PM). The GMT hand moves in sync with the main hour hand. To display a different time zone, rotate the bi-color 24-hour bezel to align the desired 24-hour marker with the GMT hand. The bezel provides the flexibility to track a second or third zone relative to your current time.

Ensure the main time is set correctly, particularly the AM/PM. If the date changes around noon, the watch's internal 12-hour cycle is offset by 12 hours. Pull the crown to the second click and advance the time by 12 hours. Then, reset the date and day within their 'safe' window (avoiding 9 PM to 3 AM) before pushing the crown back in.

LumiBrite is a phosphorescent material that needs to be 'charged' by light. Expose the watch dial to bright natural or artificial light for a few minutes. The glow intensity and duration will depend on the light exposure and the duration in darkness.

The 'beads of rice' bracelet features removable links for adjustment. It is recommended to have a professional jeweler or watchmaker adjust the bracelet size to ensure proper fit and prevent damage to the pins or links during adjustment.