Seiko 5 Sports SRPD77K1 Automatic Men's Watch Green Dial Nylon Strap

The Seiko 5 Sports collection combines reliability, durability, and style — and this model is no exception. Powered by the Seiko 4R36 automatic calibre with 24 jewels, it features manual winding, a stop-seconds function, and a 41-hour power reserve. The day-date display at 3 o’clock adds practicality for everyday wear.

Its hard-coated stainless steel case measures 42.5 mm in diameter, 13.4 mm thick, and 46 mm lug-to-lug, making it both robust and comfortable on the wrist. The watch is paired with a nylon strap, offering a sporty, casual look. The black dial with lumiBrite hands and indexes ensures excellent visibility, protected by a Hardlex crystal and framed by a unidirectional rotating bezel.

With 10 bar water resistance, magnetic resistance up to 4,800 A/m, and a lightweight build at just 94 g, this timepiece is built to perform in everyday life and beyond. Its see-through screw case back offers a glimpse of the movement inside — a perfect blend of function and style for modern watch enthusiasts.

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 (hard coating)  

Case Size : Thickness 13.4 mm, Diameter 42.5 mm, Lug-to-lug 46.0 mm  

Crystal : Hardlex  

LumiBrite : On hands and index(es)  

Band Material : Nylon  

Distance between lugs : 22 mm  

Other Details  

Water Resistance : 10 bar  

Magnetic Resistance : 4,800 A/m  

Weight : 94.0 g  

Features : Unidirectional rotating bezel, See-through & Screw case back