SEIKO SBSA113 5 Sports Watch

The SEIKO 5 Sports SBSA113 is a modern mechanical sports watch that carries on the legacy of the Seiko 5 series, known for reliability, durability, and everyday versatility.

Powered by an automatic movement with manual winding capability, this model features a well-balanced stainless steel case and a clear, sporty dial enhanced with LumiBrite on the hands and indexes for excellent visibility in low-light conditions. The combination of practical functionality and robust construction makes it suitable for daily wear as well as active lifestyles.

A see-through screw-down case back allows a view of the mechanical movement inside, adding a touch of mechanical appeal to its sporty design.

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Movement

Caliber No.: 4R36
Movement Type: Mechanical automatic (with manual winding)
Accuracy: +45 seconds to −35 seconds per day
Power Reserve: Approx. 41 hours (when fully wound)
Jewels: 24

Functions

• Hacking seconds (seconds hand stop function)

• Date and day display

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Case & Band

Case Material: Stainless steel
Case Back: Stainless steel and glass (see-through)
Case Size:

• Thickness: 13.2 mm

• Width: 39.4 mm

• Length: 48.1 mm

Crystal: Curved Hardlex
LumiBrite: Yes (hands and indexes)
Clasp: One-push tri-fold clasp with double lock
Maximum Wrist Size: 205.0 mm

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Watch Specifications

• Water resistance: Enhanced water resistance for daily use (10 bar)

• Magnetic resistance: Yes

• Weight: 146.0 g

• Screw-down see-through case back