Pre-Order | Arriving July 2026
Movement
Caliber Number: 4R36
Movement Type: Automatic with manual winding
Power Reserve: Approx. 41 hours
Jewels: 24
Functions:
- Stop second hand function
- Day/Date display
Case / Band
Case Material: Stainless steel
Thickness: 13.2 mm
Diameter: 41 mm
Lug-to-lug: 48.5 mm
Crystal: Curved Hardlex
Band Material: Nylon
Other Details
Water Resistance: 10 bar
Weight: 85 g
Features:
- LumiBrite on hands, index(es) and bezel
- Rotating bezel
- See-through & Screw case back
Any purchase through our SEIKO Online Store has a 3-year guarantee.
Frequently Asked Questions
The Seiko 5 Sports HDB009K1 is powered by Seiko's Caliber 4R36 automatic movement with manual winding capability. It features 24 jewels, a stop-seconds function, and provides an approximate power reserve of 41 hours.
The HDB009K1 stands out with its brown earth-tone dial and rugged nylon strap combined with leather accents, creating an authentic outdoor-inspired look. It also features a rotating compass bezel that enhances its field-watch functionality.
Yes. The HDB009K1 is built as a field watch and includes a simple compass bezel, durable nylon strap, and 10-bar water resistance, making it a reliable companion for outdoor activities and everyday adventures.
The watch features LumiBrite on the hands, indexes, and bezel markings. Additionally, the large Arabic numerals improve visibility, allowing the time to be read quickly even in low-light environments.
The HDB009K1 has a stainless steel case measuring 41.0mm in diameter, 13.2mm in thickness, and 48.5mm lug-to-lug. These proportions provide a comfortable fit while maintaining the rugged presence expected from a field watch.
