The Seiko 5 Sports SKX Series welcomes two striking additions: the HDB004J and HDB005J. Both timepieces draw heavy inspiration from the iconic SKX diver legacy, combining classic utility with sophisticated modern styling accents.
Modern watchmakers crafted these models to deliver daily versatility, exceptional durability, and traditional mechanical watchmaking excellence.
Specification
The overall design inherits the legendary SKX case profile, featuring sculpted contours and ergonomic crown placement at 4 o’clock.
The stainless-steel construction boasts fine brushed finishing alongside mirror-polished bevels. A unidirectional rotating bezel sits on top, ensuring precise elapsed time tracking.
The structural dimensions deliver substantial presence while maintaining comfortable proportions on the wrist. The stainless-steel case measures 42.5mm in diameter, presenting an authoritative profile.
The case thickness measures 14.2mm, accommodating the robust automatic movement and curved glass. The lug-to-lug distance spans 46mm, ensuring the watch sits flat without overhanging smaller wrists.
The lug width measures 22mm, matching the solid stainless-steel bracelet and it uses a three-fold clasp with a secure lock and push-button release.
Both references utilize a curved Hardlex crystal to protect the dial from scratches and impacts. Hardlex offers reliable impact resistance suitable for dynamic everyday active use.
A transparent screw-down caseback reveals the intricate automatic movement operating inside. The case construction provides water resistance up to 100 meters.
You can safely wear these timepieces during swimming, showering, and general water activities without worry.
Dial and Movement
These collections provide two color’s dial, white and dark green. Both models display a day and date window positioned neatly at 3 o’clock. Lumibrite paint coats the hour markers and hands, providing supreme legibility in total darkness.
The Seiko internal caliber 4R36 powers both the HDB004J and HDB005J timepieces. This well-regarded automatic movement operates at 21,600 vph.
The caliber contains 24 synthetic jewels, reducing mechanical friction across critical moving components. It supports both automatic self-winding and manual hand-winding capabilities through the main crown.
A hacking seconds function stops the second hand completely when pulling out the crown for precise time setting. The power reserve delivers approximately 41 hours of continuous operation when fully wound.
Daily accuracy rates range reliably between +45 seconds to -35 seconds. Magnetic resistance rated at 4,800 A/m protects the movement from ordinary home electronic interference.
Seiko 5 Sports SKX HDB004J
The HDB004J model showcases a brilliant sunray white dial that captures incoming light dynamically. A subtle sunburst texture creates shifting highlights across the face as the wrist moves.
Deep black paint coats the unidirectional bezel insert, creating a classic high-contrast look. Warm yellow gold-toned accents elevate the hour markers, hands, and bezel numerals with luxurious contrast.
The applied hour indices feature gold framing surrounding clean white Lumibrite fill for enhanced depth.
The central sweep seconds hand wears a matching gold finish, emphasizing the elegant theme. This silver and gold color combination creates a refined, classic dress-diver aesthetic.
Seiko 5 Sports SKX HDB005J
The HDB005J model offers a rich, forest-green dial with a matching deep green bezel insert. The dial surface features a subtle sunray texture, reflecting soft emerald tones under direct lighting.
Rose gold-toned hands and hour markers adorn the green backdrop, producing a sophisticated warm tone. Rose gold frame lines surround the applied indices, complementing the dark green field underneath.
The unidirectional bezel features rose gold numerals printed across the green bezel insert. This striking color combination provides a distinctive, modern option within the SKX family.
By pairing classic steel cases with luxurious gold-toned accents, these models bridge tool-watch utility and modern style. Both models are scheduled for release in October 2026 and priced at JPY 53,900 or approximately $351.
