Seiko SRPE55K1 5 Sports Black Automatic

The Seiko 5 Sports SRPE55K1 is a rugged yet stylish automatic watch that embodies the spirit of Seiko’s iconic 5 Sports collection. Crafted with a bold black dial and polished stainless steel case and bracelet, it offers versatile design suitable for everyday wear, business, or weekend adventures. Featuring a reliable Caliber 4R36 automatic movement with manual-wind capability, this timepiece delivers solid performance with approximately 41 hours of power reserve. The practical day-date display and luminous hands provide excellent readability in all light conditions, while the 100m water resistance makes it ready for swimming and water activities. With a see-through screw case back, you can admire the movement at work — a testament to Seiko’s enduring craftsmanship.

Movement: Seiko Caliber 4R36 automatic movement with manual winding

Power Reserve: Approx. 41 hours

Jewels: 24

Functions: Day-date display, stop second hand function

Dial: Black with LumiBrite hands and indexes for enhanced visibility

Case: Stainless steel (40mm diameter, 11.5mm thickness, 44.6mm lug-to-lug)

Crystal: Hardlex mineral crystal

Bracelet: Stainless steel with three-fold clasp and push button release

Water Resistance: 10 bar (100m / 330ft) suitable for swimming

Caseback: See-through screw case back

Sporty yet Elegant Design: Perfect for daily use and casual occasions

Part of the Seiko 5 Sports Collection — durable, reliable and stylish

Movement Type: Automatic with Manual Winding

Caliber Number: 4R36

Power Reserve: Approx. 41 Hours

Jewels: 24

Functions: Stop Second Hand Function

Functions: Day/Date Display

Case Material: Stainless Steel

Case Thickness: 11.5mm

Case Diameter: 40.0mm

Lug-to-Lug: 44.6mm

Distance Between Lugs: 20mm

Weight: 142.0g

Crystal: Hardlex

LumiBrite: LumiBrite on Hands and Indexes

Clasp: Three-Fold Clasp with Push Button Release

Clasp Feature: Three-Fold Clasp with Secure Lock

Water Resistance: 10 Bar

Magnetic Resistance: 4,800 A/m

Caseback: See-Through

Caseback Style: Screw Case Back

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1. Is the Seiko SRPE55K1 an original Seiko watch?

Yes — this is a 100% genuine Seiko timepiece from the official Seiko 5 Sports collection.

2. Does this watch need a battery?

No. It is powered by an automatic movement with manual winding capability.

3. What is the case size?

The case measures 40mm in diameter with a thickness of 11.5mm.

4. Can I wear this watch swimming?

Yes, it features 100m (10 bar) water resistance, suitable for swimming and snorkeling (but not diving).

5. Does it display day and date?

Yes — a clear day-date window at 3 o’clock enhances everyday functionality.

6. Does it glow in the dark?

Yes. The hands and indexes are coated with LumiBrite for improved visibility in low light.

7. Is this watch suitable for daily wear?

Absolutely — with its robust stainless steel build, reliable movement, and versatile design, it’s ideal for daily wear.