Seiko 5 Sports SRPL87K1

The Seiko 5 Sports SRPL87K1 is a tough, dependable watch with a sporty edge that’s built to keep up with your day. It runs on Seiko’s 4R36 automatic movement, which means it winds itself as you wear it, and gives you about 41 hours of power reserve.

With 24 jewels inside, it keeps time smoothly and includes practical features like a day/date display and stop-second function. The 42.5mm stainless steel case has a solid feel, while the curved Hardlex crystal and LumiBrite on the hands and indexes make it easy to read—even in the dark.

The silicone strap adds comfort and flexibility, perfect for active lifestyles. It’s water-resistant up to 10 bar and protected against magnetic fields, with a unidirectional rotating bezel and a see-through screw case back that show off its mechanical charm. Lightweight yet rugged, it’s a watch that’s ready for whatever comes your way.

 

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

Case Size

Thickness:13.9mm
Diameter:42.5mm
Lug-to-lug:46.0mm

Crystal

Curved Hardlex

LumiBrite

LumiBrite on hands and index(es)

Band Material

Silicone

Bracelet Length

205.0

Distance between lugs

22

Other Details

Water Resistance

10 bar

Magnetic Resistance

4,800 A/m

Weight

100.0

Features

• Unidirectional rotating bezel
• See-through & Screw case back