The Seiko 5 Sports GMT SSK021K1 is a refined GMT variant within the Seiko 5 Sports series, originally introduced as a U.S. Special Edition. Designed with practical world-time functionality and a bold two-tone aesthetic, it blends travel capability with everyday sport styling.

This model is powered by the Seiko Caliber 4R34 automatic movement, which includes manual winding capability, hacking seconds, and an independent GMT hand for tracking a second time zone. The movement delivers approximately 41 hours of power reserve.

The watch features a 42.5 mm stainless steel case with a bi-colour 24-hour GMT bezel that helps distinguish between day and night zones at a glance. Protected by a Hardlex crystal, the charcoal grey dial is accented with a large GMT hand and luminous hands and markers for strong legibility.

Rated to 100 m / 10 bar water resistance, the SSK021K1 is suitable for everyday use and light water exposure. Its stylized five-row stainless steel bracelet with secure tri-fold clasp and push-button release adds both comfort and presence on the wrist, while the see-through screw case back lets you view the movement in action.

This combination of GMT utility, heritage-inspired design, and robust Seiko engineering makes the SSK021K1 a versatile choice for travelers and collectors alike.

KEY SPECIFICATIONS

• Reference: SSK021K1

• Movement: Automatic (Caliber 4R34, GMT)

• Power Reserve: Approx. 41 hours

• Functions: Hours, Minutes, Seconds, Date, GMT (dual time zone)

• Case Diameter: 42.5 mm

• Case Thickness: 13.6 mm

• Lug-to-Lug: 46.0 mm

• Lug Width: 22 mm

• Case Material: Stainless Steel

• Crystal: Hardlex

• Bezel: Bi-colour 24-hour rotating GMT

• Water Resistance: 100m / 10 bar

• Bracelet: Stainless Steel (five-row design, tri-fold clasp with secure lock)

• Case Back: Screw case back, see-through

• Dial Color: Charcoal Grey with gold accents

• Condition: Brand New

• Edition: U.S. Special Edition

• Lume: LumiBrite on hands & indices