Seiko SRPH25K1 5 Sports Automatic Black Dial Day-date

Stealth Flieger Style

The Seiko SRPH25K1 fuses classic pilot-watch design with modern stealth styling. Large luminous arabic numerals, a triangle marker at 12 o’clock, and a clean two-register layout deliver the legibility of a traditional Flieger, while an all-black hard-coated case and mesh bracelet give the watch a distinctly contemporary attitude.

Design & Dial

The matte black dial uses oversized white numerals and luminous markers for instant readability, with the printed Seiko 5 logo and “Automatic” script anchoring the design. A day-date window sits at 3 o’clock, and the central seconds hand carries a lume-tipped baton. LumiBrite is applied to the hands and indices for low-light visibility.

Movement & Performance

Inside is the Caliber 4R36, an automatic movement with 24 jewels and approximately 41 hours of power reserve. The 4R36 supports both hacking seconds and manual winding, giving the wearer full control when setting the time. The movement is on display through the see-through caseback.

Case & Build

The 39.4mm stainless steel case carries an all-black hard coating and measures 13.2mm thick with a 48.1mm lug-to-lug profile. A curved Hardlex crystal protects the dial, and the case is rated to 100 meters of water resistance. Magnetic resistance is 4,800 A/m, and the watch head weighs roughly 123 grams.

Bracelet & Wearability

A matching all-black stainless steel mesh (Milanese) bracelet with a 20mm lug width wraps the wrist comfortably, finishing the monochromatic look. The supple mesh construction allows the watch to drape easily and pairs naturally with the field/Flieger aesthetic.

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