The Seiko Prospex SPB383J1 Automatic GMT is part of Seiko’s modern Prospex collection, combining professional dive-watch specifications with practical GMT functionality.

Drawing inspiration from Seiko’s heritage in robust tool watches, the SPB383J1 features a 42mm stainless steel case and a unidirectional rotating bezel, paired with a clean black dial designed for maximum legibility. The strong contrast between the hands, markers, and dial ensures excellent visibility in various lighting conditions.

Inside, the watch is powered by Seiko’s in-house Caliber 6R54 automatic movement, offering GMT functionality and approximately 72 hours of power reserve. The independent GMT hand allows tracking of a second time zone, making it an ideal companion for travel.

Protected by a sapphire crystal and offering 200 meters of water resistance, the SPB383J1 stays true to the Prospex philosophy: dependable performance with everyday wearability.

The stainless steel bracelet completes the balanced, versatile design suitable for both professional and casual settings.

Key Specifications:

• Reference: SPB383J1

• Movement: Automatic (Seiko Caliber 6R54, GMT function)

• Case Size: 42mm

• Case Material: Stainless Steel

• Crystal: Sapphire

• Water Resistance: 200m

• Bracelet: Stainless Steel

• Condition: Brand New

All watches are inspected prior to shipping.