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Seiko - Brand New

Seiko 5 Sports SKX GMT - SSK003

  • 42.5 mm case
  • 100 m water resistant
Sale price $396.00
Regular price $495.00
Sold out

About this timepiece

Deep blue and confidently sporty, the Seiko 5 Sports SKX Sports Style GMT (ref. SSK003) proudly adds a second time zone to a design Seiko drew from its much-admired SKX series. A blue and black 24-hour bezel turns around the blue dial, its two tones marking day and night hours, while a bright red GMT hand cuts cleanly across the face. LumiBrite is applied generously to the hands, indexes and GMT hand, so every reading stays clear in dim conditions.

At its heart, the caliber 4R34 automatic GMT movement runs with 24 jewels at 21,600 vibrations per hour and stores approximately 41 hours of power reserve, and it can be hand-wound as well. The date sits beneath a magnifier in the Hardlex crystal, and a screw-down see-through case back reveals the movement while the 42.5mm stainless steel case holds 100 meters of water resistance. A newly designed five-row bracelet, inspired by the original SKX, pairs polished center rows with solid outer links and closes with a three-fold push-button clasp with secure lock.

Features

  • Blue and black GMT bezel – rotates to show day and night hours in two tones.
  • Red GMT hand – a large, luminous hand that follows a second time zone across the blue dial.
  • Caliber 4R34 automatic – 24 jewels, approximately 41 hours of power reserve and manual winding.
  • Hardlex details – a magnified date window in the crystal and a Hardlex bezel ring indicator.
  • 100m water resistance – with a screw-down see-through case back.

Specifications

  • Reference: SSK003
  • Collection: Seiko 5 Sports SKX Sports Style GMT series
  • Gender: Men's
  • Caliber Number: 4R34
  • Movement Type: Automatic with manual winding
  • Vibrations: 21,600 vibrations per hour
  • Power Reserve: Approx. 41 hours
  • Jewels: 24
  • Functions: 24-hour hand (dual time display function), stop second hand function, date display
  • Case Material: Stainless steel
  • Diameter: 42.5 mm
  • Thickness: 13.6 mm
  • Lug-to-Lug: 46.0 mm
  • Dial Color: Blue
  • Crystal: Hardlex with magnified glass
  • LumiBrite: LumiBrite on hands and index(es)
  • Band: Stainless steel stylized five-row bracelet
  • Clasp: Three-fold clasp with secure lock, push button release
  • Distance Between Lugs: 22 mm
  • Water Resistance: 10 bar, 100 meters (330 feet)
  • Magnetic Resistance: 4,800 A/m
  • Weight: 161.0 g
  • Features: Rotating bezel (24-hour display), see-through and screw case back

Timepiece History

Seiko's story began in 1881, when a 21-year-old entrepreneur, Kintaro Hattori, opened a shop selling and repairing watches and clocks in central Tokyo. The first watch to carry the Seiko name followed in 1924, and Seiko went on to introduce a long line of watchmaking firsts, including the Quartz Astron, the world's first quartz wristwatch, on December 25, 1969. In 2024, Seiko celebrated the 100th anniversary of the Seiko brand.

The SSK003 belongs to Seiko 5 Sports, a collection rooted in the Seiko Sportsmatic 5 of 1963, Japan's first automatic day-date watch. Seiko 5 Sports itself was born in 1968, adding enhanced water resistance, a strengthened crystal and luminous hands and markers to the Seiko 5 essentials of an automatic movement, a day-date display, water resistance, a recessed crown and a durable case and bracelet, and it found worldwide favor as a go-anywhere watch. In 2019, Seiko 5 Sports was rebranded to carry watch culture forward to the next generation. Its design follows the SKX series, the successor to the watch widely known as the "SKX," a watch loved around the world. Seiko later added a GMT function to Seiko 5 Sports for international travelers, and with the rotating bezel it is possible to track three time zones. Along with its black and orange siblings, the SSK003 belongs to the first Seiko 5 Sports series offered with a GMT function.

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