Seiko
Prospex Diver SPB485J1 „Coastline“
SPECIFICATIONS
Movementautomatic
Caliber6R55
Case size41.3mm
Case materialStainless steel
Case shaperound
Thickness12.5mm
Lug width20mm
Water resistance300m / 30 ATM
Crystalsapphire
Dial colorocean grey
Complicationsdate, stop-seconds, unidirectional rotating dive bezel
Release year2024
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The Seiko Prospex Diver SPB485J1 "Coastline" is notable for pairing a compact 41.3mm diver case with the new 6R55 movement, offering a 72-hour power reserve and contemporary proportions. Its distinctive polygonal bezel/case styling and "coastline" dial treatment provide a design-forward look while maintaining full 300m dive-watch specifications.