Seiko 5 Sports SKX SRPJ45K1 – Skeleton Style Automatic Watch

Bold skeleton-inspired styling meets dependable Japanese automatic watchmaking.

The Seiko 5 Sports SKX SRPJ45K1 combines a distinctive, modern design with the reliability of Seiko’s trusted automatic movement. Featuring a striking dial with skeleton-style details, a robust stainless steel case and a sporty rotating bezel, this watch brings character and versatility to everyday wear.

Powered by Seiko’s automatic Calibre 4R36 movement, the SRPJ45K1 runs through the natural movement of your wrist or can be wound manually. The day and date display adds everyday practicality, with the added convenience of a bilingual day indicator displaying the day in either English or Japanese.

Finished with a stainless steel bracelet and a transparent case back, this Seiko 5 Sports watch offers a compelling combination of mechanical watchmaking, contemporary style and everyday functionality.

Key Features

• Automatic Movement: Powered by Seiko’s Calibre 4R36, with manual winding capability.

• Skeleton-Inspired Design: A distinctive dial design that gives the watch a bold, technical appearance.

• Bilingual Day and Date Display: Choose between English and Japanese for the day-of-the-week display.

• Rotating Bezel: A unidirectional rotating bezel adds to the watch’s sporty character.

• Luminous Details: LumiBrite on the hands, indices and bezel helps improve visibility in low-light conditions.

• Stainless Steel Construction: A durable case and matching bracelet provide a versatile, sporty finish.

• See-Through Case Back: Offers a view of the watch’s mechanical movement.

• Everyday Water Resistance: Rated to 10 bar, making it suitable for swimming when used within the manufacturer’s guidelines.

Specifications

• Brand: Seiko

• Collection: Seiko 5 Sports SKX

• Model: SRPJ45K1

• Movement: Automatic with manual winding

• Calibre: Seiko 4R36

• Power Reserve: Approximately 41 hours

• Jewels: 24

• Case Material: Stainless steel

• Case Thickness: 13.4 mm

• Case Diameter: 42.5 mm

• Lug-to-Lug Distance: 46.0 mm

• Crystal: Hardlex

• Bracelet: Stainless steel

• Lug Width: 22 mm

• Water Resistance: 10 bar

• Magnetic Resistance: 4,800 A/m

• Weight: 165 g

• Case Back: See-through, screw-down

• Bezel: Unidirectional rotating

• Luminescence: LumiBrite on hands, indices and bezel

• Calendar: Day and date display, with English and Japanese day options

• Stop-Seconds Function: Yes

Case & Dial

The SRPJ45K1 features a robust stainless steel case with a 42.5 mm diameter and a 13.4 mm profile. Its distinctive skeleton-inspired dial design gives the watch a technical, contemporary look, while the luminous hands and indices help make the time easier to read in darker conditions.

A Hardlex crystal protects the dial, offering practical durability for everyday use. The unidirectional rotating bezel reinforces the watch’s sporty design, and the see-through screw-down case back provides a view of the automatic movement inside.

Bracelet & Clasp

The stainless steel bracelet complements the watch’s robust case and adds a versatile finish suitable for casual and everyday outfits. With a 22 mm lug width, the bracelet maintains the watch’s substantial sporting proportions.

Functions & Additional Information

At the heart of the watch is Seiko’s Calibre 4R36 automatic movement, featuring both automatic and manual winding. It provides an approximate 41-hour power reserve and includes a stop-seconds function for more precise time setting.

The practical day and date display includes a bilingual day indicator, allowing the day of the week to be displayed in either English or Japanese. With 10 bar water resistance and magnetic resistance of 4,800 A/m, the SRPJ45K1 is designed to handle the demands of everyday wear.

The Seiko 5 Sports SKX SRPJ45K1 is an excellent choice for anyone seeking a distinctive automatic watch with skeleton-inspired styling, a bilingual day display and the dependable performance of Seiko’s mechanical watchmaking.