Seiko SRPD79 Day-Date Automatic All Black
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Product Description
Seiko SRPD79 Overview
The Seiko SRPD79 brings stealth styling to the long-running 5 Sports line. A black ion-finished stainless steel case, matching black dial, and black nylon strap give it a low-key, all-black profile, while the automatic 4R36 movement keeps it firmly in the affordable mechanical watch category that made Seiko 5 a daily-wear staple.
Design & Dial
The dial is fully blacked out, with LumiBrite hands and applied indices for legibility against the dark background. A day-date window sits at 3 o’clock and the crown is offset at 4 o’clock. A black unidirectional rotating bezel ringed with minute markers wraps the dial, reinforcing the sport-watch silhouette.
Movement & Performance
Inside is Seiko’s caliber 4R36, a 24-jewel automatic with manual winding and hacking seconds. Power reserve is approximately 41 hours, and the see-through caseback lets you watch the rotor at work. It is a workhorse movement designed for everyday wear rather than chronometer-level precision.
Case & Build
The stainless steel case measures 42.5mm across and 13.4mm thick with a 46.0mm lug-to-lug, finished in a hard black coating. A Hardlex mineral crystal protects the dial, and water resistance is rated to 100 meters, suitable for swimming and snorkeling but not for serious dive use.
Strap
The SRPD79 ships on a black nylon strap with matching black hardware, 22mm at the lugs. The strap is easy to swap if you prefer leather, rubber, or steel, making this a flexible base for personalization.
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