Description
Description
The SEIKO PROSPEX SBPK003 JDM Sumo Solar GMT Diver combines SEIKO’s professional diver heritage with a practical solar GMT layout. Developed within the SEIKO PROSPEX DIVER SCUBA lineup, it features a black dial, large LumiBrite markers, a unidirectional rotating bezel, and a stainless steel case design suited for diving, travel, and everyday use.
Powered by Caliber 5K65 Solar Quartz, the watch offers a GMT hand, date display, and approx. 9 months of operation when fully charged. Sapphire crystal with inner anti-reflective coating, a screw-down crown, screw case back, magnetic resistance, and 200 m air diver’s water resistance support dependable performance in active environments.
Designed for buyers seeking a Japan Made men’s solar GMT diver, the SBPK003 delivers strong readability, solid wrist presence, and premium Japanese craftsmanship. Within the SEIKO PROSPEX collection, it stands out through its black tool-watch design, Sumo case profile, and JDM appeal.
Key Specifications
- Case: 51.8 × 45.0 × 13.2 mm, 182g, stainless steel with Diashield coating
- Bezel: Unidirectional rotating bezel, black finish
- Band: Stainless steel bracelet, silver, one-push diver extender clasp
- Water resistance: 200 m air diver’s water resistance
- Movement: Caliber 5K65 Solar Quartz GMT
- Power: Solar charging system; approx. 9 months when fully charged
- Accuracy: ±15 sec/month
- Display: Analog black dial with GMT hand and date display
- Functions: GMT hand, 24-hour display, date calendar
- Special features: Solar, Diashield coating, screw-down crown, screw case back, LumiBrite on hands, indexes and bezel, magnetic resistance, unidirectional rotating bezel
- Glass: Sapphire crystal with inner anti-reflective coating
- Origin: Japan Domestic Market (JDM)
- Made in Japan: Japan Made
- Warranty: 1 year Japan domestic manufacturer warranty
- Model Code: SBPK003
- Release date: June 2023
Key Highlights
The SBPK003 stands out through its black Sumo-style diver design and practical GMT functionality. Compared with standard three-hand diver watches, the added GMT hand gives it stronger travel utility while preserving the bold SEIKO PROSPEX tool-watch character.
Its Caliber 5K65 Solar Quartz movement provides reliable light-powered performance with minimal battery maintenance. The approx. 9-month power reserve when fully charged makes it practical for daily use, travel, and active outdoor environments.
On the wrist, the 45.0 mm case delivers a strong diver presence, while the stainless steel bracelet, sapphire crystal, LumiBrite layout, and 200 m air diver’s water resistance support durability and readability.
Within the SEIKO PROSPEX DIVER SCUBA lineup, this JDM Japan Made model is a strong option for buyers seeking a solar powered watch with GMT functionality, premium Japanese craftsmanship, and classic black diver styling.