Seiko 5 Sports ‘Black Grape’ GMT Watch - SSK001K1

Inspired by the iconic SKX series from the '90s, this Seiko 5 Sports Black Grape GMT blends vintage style with modern reliability. The bold bi-colour 24-hour bezel is coated in durable Hardlex, while the GMT hand and LumiBrite-coated hands and markers ensure high visibility across time zones. The retro-inspired bracelet stays true to its heritage with a refined five-piece link design. Built on over 50 years of trusted performance, Seiko 5 Sports still delivers on its five essentials: automatic movement, day-date display, water resistance, recessed crown, and a durable case and bracelet.

General

• Model: Seiko SSK001K1
• Collection: Seiko 5 Sports GMT

Movement

• Caliber: Seiko 4R34
• Movement Type: Automatic with manual winding
• Jewels: 24
• Frequency: 21,600 vibrations per hour (3 Hz)
• Power Reserve: Approximately 41 hours
• Accuracy: +45 to -35 seconds per day (manufacturer specification)

Functions

• GMT (24-hour) hand
• Date display
• Hacking seconds
• Hand-winding capability

Case

• Material: Stainless steel
• Diameter: 42.5 mm
• Thickness: 13.6 mm
• Lug-to-Lug: 46.0 mm
• Lug Width: 22 mm

Crystal

• Hardlex mineral crystal
• Cyclops magnifier over the date

Dial & Bezel

• Dial Colour: Black
• GMT Hand: Red
• Bezel: Fixed 24-hour GMT bezel
• Bezel Colour: Black and grey two-tone

Water Resistance

• 100 metres (10 bar)

Lume

• LumiBrite on the hands and hour markers

Bracelet

• Material: Stainless steel
• Style: Five-row bracelet
• Clasp: Three-fold clasp with secure lock and push-button release

Case Back

• Transparent exhibition screw-down case back

Weight

• Approximately 161 g

Key Features

• Automatic GMT movement (Seiko 4R34)
• Manual winding and hacking seconds
• 24-hour GMT hand for tracking a second time zone
• Date display
• Hardlex crystal
• Exhibition case back
• 100 m water resistance
• LumiBrite hands and markers
• Stainless steel case and bracelet