SEIKO 5 Sports GMT Re-Interpretation SSK001K1

Items Description

The SEIKO 5 Sports GMT Re-Interpretation SSK001K1 represents a landmark addition to the legendary Seiko 5 Sports collection, introducing the first GMT function within this iconic lineup. This timepiece is a direct successor to the celebrated SKX design language, reimagined for the modern global traveler who requires reliable timekeeping across multiple time zones. The robust stainless steel case, measuring 42.5mm in diameter with a thickness of 13.6mm, delivers a commanding presence on the wrist while maintaining the classic Seiko 5 Sports ethos of durability, performance, and exceptional value. The black dial, referred to by enthusiasts as the "Black Grape," provides a sophisticated backdrop for the GMT complication and the distinctive 24-hour bezel.

 

Powered by the in-house Caliber 4R34 automatic movement, this watch offers both manual winding capability and a practical date function. The movement beats at 21,600 vibrations per hour and provides a power reserve of approximately 41 hours, ensuring reliable performance through daily wear. The Hardlex crystal protects the dial, while the screw-down case back and 100-meter water resistance rating make this timepiece suitable for swimming and recreational snorkeling. With its 46.0mm lug-to-lug distance and 22mm lug width, the SEIKO 5 Sports GMT Re-Interpretation SSK001K1 achieves a balanced fit that works equally well under a dress shirt cuff or alongside outdoor gear.

 

Key Advantages of the SEIKO 5 Sports GMT Re-Interpretation SSK001K1

 

1. First-Ever GMT Function in Seiko 5 Sports

The SEIKO 5 Sports GMT Re-Interpretation SSK001K1 marks a historic milestone as the first model in the Seiko 5 Sports series to incorporate a true GMT complication. This feature allows the wearer to track a second time zone simultaneously, making it an indispensable tool for international business travelers, remote workers coordinating across continents, or aviation enthusiasts. The 24-hour hand, which completes one full rotation every 24 hours, is paired with a bi-directional rotating bezel marked with 24-hour graduations, enabling quick reference to home time or a third time zone.

 

• Independent 24-Hour Hand: Set independently from the main hour hand for tracking a second time zone.
• 24-Hour Bezel: Bi-directional rotation with clear day/night indicators for rapid time zone reference.
• Date Function: Quick-set date display synchronized with the main timekeeping mechanism.
• Adjustment Instructions: Seiko provides specific guidance for setting the 24-hour hand and date to ensure accurate multi-time zone operation.

 

2. Caliber 4R34 Automatic Movement with Manual Winding

At the heart of the SEIKO 5 Sports GMT Re-Interpretation SSK001K1 lies the in-house Caliber 4R34, a reliable automatic movement derived from Seiko's proven 4R family. This movement offers both automatic winding via the rotor and manual winding through the crown, providing flexibility for those who alternate between active days and desk-bound periods. The 4R34 delivers consistent accuracy within a range of +45 to -35 seconds per day, with 24 jewels reducing friction and enhancing longevity.

 

• Automatic & Manual Winding: Choose between wrist motion or manual winding for convenience.
• 41-Hour Power Reserve: Sufficient to maintain operation after a full day's wear without a watch winder.
• 21,600 vph Beat Rate: Ensures smooth seconds hand motion and reliable timekeeping.
• 24 Jewels: Minimize wear on critical movement components for long-term durability.

 

3. Robust SKX-Inspired Case Design

Drawing direct inspiration from the legendary Seiko SKX diver's watch, the case of the SEIKO 5 Sports GMT Re-Interpretation SSK001K1 features sharp, angular lugs with drilled lug holes, a signed screw-down crown at the 4 o'clock position, and a unidirectional rotating bezel with a 24-hour insert. The 42.5mm stainless steel case is brushed on the top surfaces with polished chamfers on the sides, creating a dynamic interplay of light and shadow. The 100-meter water resistance rating, paired with the screw-down case back, ensures this watch can handle daily exposure to water without hesitation.

 

• Stainless Steel Construction: Brushed and polished finishes for a premium aesthetic.
• Screw-Down Crown: Ensures water resistance and security during active use.
• 100m Water Resistance: Suitable for swimming, snorkeling, and everyday wear.
• Hardlex Crystal: Scratch-resistant mineral glass with a domed profile adds vintage character.

 

4. Striking Black Dial with Grape-Toned Accents

The black dial of the SEIKO 5 Sports GMT Re-Interpretation SSK001K1, often described as "Black Grape" by collectors, delivers exceptional legibility with a subtle, contemporary flair. Large, applied hour markers are filled with Seiko's proprietary LumiBrite luminous compound, which glows brightly in low-light conditions. The 24-hour hand is tipped with a distinct red arrow, providing immediate visual contrast against the dark dial. The date window is positioned at 3 o'clock with a cyclops magnification lens integrated into the Hardlex crystal for easy reading.

 

• LumiBrite Luminous Material: Offers extended glow duration and high brightness after exposure to light.
• Red-Tipped GMT Hand: Clearly distinguishable from the main hour and minute hands for quick reference.
• Cyclops Date Magnifier: Enhances date legibility without disrupting the dial symmetry.
• Applied Hour Markers: Add depth and a premium feel to the dial surface.

 

5. Versatile 22mm Strap Compatibility

With a standard 22mm lug width, the SEIKO 5 Sports GMT Re-Interpretation SSK001K1 offers extensive strap customization options, allowing owners to adapt the watch to different occasions and personal style preferences. The drilled lug holes simplify strap changes with a spring bar tool, making it easy to swap between the included stainless steel bracelet, NATO straps, leather bands, or rubber dive straps. This versatility ensures the watch can transition from a professional setting with a leather strap to an adventure-ready look with a rugged fabric option.

 

• 22mm StandardWidth: Access to a wide range of aftermarket straps and bracelets.
• Drilled Lug Holes: Facilitate quick and easy strap changes without risk of scratching the case.
• Bracelet Included: Solid-link stainless steel bracelet with a deployant clasp and dive extension.
• Customization Potential: Adapt the watch for formal, casual, or sports environments with minimal effort.

 

The SEIKO 5 Sports GMT Re-Interpretation SSK001K1 successfully bridges the gap between heritage-inspired design and modern functionality. Its automatic GMT movement, robust construction, and timeless SKX-derived aesthetics make it an exceptional choice for watch enthusiasts seeking a practical travel companion or a versatile everyday piece. Whether navigating multiple time zones or simply appreciating fine mechanical craftsmanship, this watch delivers an experience that exceeds expectations.

Specifications of SEIKO 5 Sports GMT Re-Interpretation SSK001K1

Brand Name	SEIKO
Model number	SSK001K1
Part Number	SSK001K1
Item Shape	Round
Dial window material type	Hardlex
Clasp	Double Locking Foldover Clasp
Case material	Stainless Steel
Case diameter	42.5 millimeters
Case Thickness	13.6 millimeters
Band Material	Stainless Steel
Band width	22 millimeters
Band Color	Silver
Dial color	Black
Bezel material	Stainless Steel
Bezel function	Bidirectional
Calendar	Date
Special features	Water Resistant
Item weight	8.82 ounces
Movement	Automatic
Water resistant depth	100 Meters
Display Type	Analog

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Specifications
[Brand Name ]	SEIKO
[Model number ]	SSK001K1
[Part Number ]	SSK001K1
[Item Shape ]	Round
[ Dial window material type ]	Hardlex
[Clasp ]	Double Locking Foldover Clasp
[Case material ]	Stainless Steel
[Case diameter ]	42.5 millimeters
[Case Thickness ]	13.6 millimeters
[Band Material ]	Stainless Steel
[Band width ]	22 millimeters
[Band Color ]	Silver
[Dial color ]	Black
[Bezel material ]	Stainless Steel
[ Bezel function ]	Bidirectional
[ Calendar ]	Date
[Special features ]	Water Resistant
[Item weight ]	8.82 ounces
[ Movement ]	Automatic
[ Water resistant depth ]	100 Meters
[Display Type ]	Analog

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