SEIKO 5 Sports SBSA203 – Compact Automatic with Urban Spirit

Compact style meets classic mechanics.

The SEIKO 5 Sports SBSA203 (SRPJ89K1) is a fresh take on vintage proportions, powered by the 4R36 automatic movement with manual winding, stop-second function, and a 41-hour power reserve.

Housed in a refined 36.4 mm stainless steel case, the watch features a clean dial, curved Hardlex crystal, and Lumibrite-coated hands and markers for legibility.

The see-through screw back offers a view into its mechanical soul, while the black calf leather strap gives it everyday versatility and comfort.

Rated to 10 bar water resistance, this is a reliable, stylish choice for modern minimalists and lovers of compact, classic timepieces.

The SBSA203 combines Seiko reliability with a more subtle, retro-inspired size that wears beautifully on any wrist. It’s timeless, lightweight, and mechanically expressive.

Features & Specifications:

Brand: SEIKO

Model: SBSA203 / SRPJ89K1 – 5 Sports Compact

Caliber: 4R36

Movement: Automatic (manual winding capable)

Power Reserve: ~41 hours

Accuracy: +45 to -35 seconds/day

Jewels: 24

Case Material: Stainless steel with see-through screw back

Glass: Curved Hardlex

Dial: Clean layout with day/date display

Lume: LumiBrite (hands & indexes)

Case Dimensions:

Diameter: 36.4 mm

Lug-to-lug: 44.4 mm

Thickness: 12.5 mm

Weight: 62 g

Strap: Black calf leather

Max wrist size: ~205 mm

Water Resistance: 10 bar / 100M

Magnetic Resistance: Yes

Made in: 🇯🇵 Japan licensed

Warranty: 1 year international, 5 years GS

Classic Seiko mechanics in a compact, elegant form – ships with full box and docs.