Seiko SBSC021 "Joker" GMT JDM Automatic Watch – Made in Japan

The Seiko SBSC021 "Joker" GMT is one of the most sought-after references in Seiko's GMT lineup, featuring a striking purple and green bezel that has earned it the nickname "Joker" among collectors. As a Japan Domestic Market (JDM) exclusive, this model combines bold styling, reliable GMT functionality, and exceptional value, making it a standout addition to any collection.

Powered by Seiko's trusted Caliber 4R34 automatic GMT movement, the SBSC021 allows you to track a second time zone using its dedicated 24-hour GMT hand and rotating bezel. Built with a durable stainless steel case and bracelet, luminous hands and markers, and a transparent case back, this watch is designed to perform whether you're traveling internationally or wearing it as an everyday timepiece.

Its unique color combination and limited availability have quickly made the SBSC021 one of the most desirable modern JDM GMT watches among Seiko enthusiasts worldwide.

Key Features

✓ Made in Japan
✓ Authentic Seiko JDM Release
✓ Popular "Joker" Green & Purple GMT Bezel
✓ Automatic GMT Movement (Caliber 4R34)
✓ Dual Time Zone Display Function
✓ Rotating 24-Hour Bezel
✓ LumiBrite Hands and Markers
✓ See-Through Case Back
✓ 100M Water Resistance
✓ Stainless Steel Case and Bracelet

Technical Specifications

Movement

• Caliber: 4R34

• Automatic with Manual Winding

• 24 Jewels

• Approx. 41-Hour Power Reserve

• GMT / Dual Time Zone Display

• 24-Hour Hand

• Stop Seconds Function (Hacking)

Case & Crystal

• Stainless Steel Case

• Diameter: 42.5mm

• Thickness: 13.6mm

• Lug-to-Lug: 46.0mm

• Hardlex Crystal with Cyclops Lens

• Rotating 24-Hour Bezel

Bracelet & Clasp

• Stainless Steel Bracelet

• Three-Fold Clasp with Push Button Release

• Secure Lock System

Additional Features

• LumiBrite on Hands and Indices

• See-Through Case Back

• Screw Case Back

• Water Resistance: 10 Bar (100M)

• Weight: 161g

Why Collectors Love the SBSC021

The SBSC021 "Joker" stands out from the crowd with its distinctive green-and-purple bezel, a colorway rarely seen in modern watchmaking. Combined with Seiko's proven 4R34 GMT movement, Made in Japan craftsmanship, and growing collector demand, the Joker has become one of the hottest references in the SBSC series.

Whether you're a seasoned collector or searching for a GMT that offers something different from the usual black-and-blue designs, the SBSC021 delivers a unique personality while maintaining the practicality and reliability that Seiko is known for.

Why Buy From Tokyo Treasures?

Tokyo Treasures specializes in authentic Japan Domestic Market (JDM) watches sourced directly from Japan.

✓ Direct from Japan
✓ 100% Authentic Guaranteed
✓ Carefully Inspected Before Shipping
✓ Trusted by Collectors Worldwide
✓ Nationwide & International Shipping Available