





Seiko Prospex SPB483J1 SPB483 SPB483J Polygonal in Coastline-Cobalt Blue Dial Divers Men's Watch

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Seiko Prospex SPB483J1 SPB483 SPB483J Polygonal in Coastline-Cobalt Blue Dial Divers Men's Watch
The Seiko Prospex Polygonal (SPB483J1) is a high-performance dive watch with a distinctive design. Its unique polygonal case shape and captivating blue dial make a bold statement, while the robust stainless steel construction ensures durability in demanding environments. Powered by the 6R55 automatic caliber, this timepiece offers an impressive 72-hour power reserve and exceptional accuracy. With 300m water resistance, a unidirectional rotating bezel, and LumiBrite on the hands, indexes, and bezel, it's ready for underwater exploration. The scratch-resistant sapphire crystal and screw-down crown provide added protection, while the three-fold clasp with secure lock ensures a comfortable and secure fit.
The Seiko Prospex Polygonal (SPB483J1) is a high-performance dive watch with a distinctive design. Its unique polygonal case shape and captivating blue dial make a bold statement, while the robust stainless steel construction ensures durability in demanding environments. Powered by the 6R55 automatic caliber, this timepiece offers an impressive 72-hour power reserve and exceptional accuracy. With 300m water resistance, a unidirectional rotating bezel, and LumiBrite on the hands, indexes, and bezel, it's ready for underwater exploration. The scratch-resistant sapphire crystal and screw-down crown provide added protection, while the three-fold clasp with secure lock ensures a comfortable and secure fit.
Seiko Prospex Polygonal in Coastline-Cobalt Series
#SPB483J1
Automatic with Manual Winding
Blue Dial
Calibre No:6R55
300m Water Resistance/30BAR
Accuracy:-15/+25 seconds per day
Power Reserve:72 Hours
24 Jewels
Grey Dial
Lumibrite on hands, indexes and bezel
Stainless Steel Case
Stainless Steel Bracelet
Three-fold clasp with secure lock, push button release with extender
Anti-reflective coating on inner surface
Sapphire Crystal
Screw case back, Screw-down crown, Unidirectional rotating bezel
Watch Function: Stop seconds hand function
Magnetic Resistance: 4,800 A/m
Case Diameter:41.3mm
Case Thickness:12.5mm
Case Length:48.2mm
Lug Width:20.0mm
Weight: 179.0g
Seiko Prospex Polygonal in Coastline-Cobalt Series
#SPB483J1
Automatic with Manual Winding
Blue Dial
Calibre No:6R55
300m Water Resistance/30BAR
Accuracy:-15/+25 seconds per day
Power Reserve:72 Hours
24 Jewels
Grey Dial
Lumibrite on hands, indexes and bezel
Stainless Steel Case
Stainless Steel Bracelet
Three-fold clasp with secure lock, push button release with extender
Anti-reflective coating on inner surface
Sapphire Crystal
Screw case back, Screw-down crown, Unidirectional rotating bezel
Watch Function: Stop seconds hand function
Magnetic Resistance: 4,800 A/m
Case Diameter:41.3mm
Case Thickness:12.5mm
Case Length:48.2mm
Lug Width:20.0mm
Weight: 179.0g
Notice to Customers:
Orders are dispatched from Singapore.
For customers in the United States:
As of August 29, 2025, all goods imported into the U.S.—regardless of their value—may incur a 10% import duty. This change follows the removal of the de minimis threshold under updated U.S. customs policies.
Please note that customers are responsible for all import duties, taxes, customs charges, and any applicable handling fees.
For information specific to your country’s customs process, including courier fees or tax-free limits, please reach out to our support team.
Notice to Customers:
Orders are dispatched from Singapore.
For customers in the United States:
As of August 29, 2025, all goods imported into the U.S.—regardless of their value—may incur a 10% import duty. This change follows the removal of the de minimis threshold under updated U.S. customs policies.
Please note that customers are responsible for all import duties, taxes, customs charges, and any applicable handling fees.
For information specific to your country’s customs process, including courier fees or tax-free limits, please reach out to our support team.