Seiko Prospex SPB485 300m Diver Rose Gold Bezel Automatic Watch
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The Seiko Prospex SPB485 introduces a striking new design language to the legendary Prospex collection with its polygonal octagonal bezel and warm gray "Coastal" dial.
This 41.3mm diver represents a bold departure from Seiko's traditional circular bezels while maintaining the brand's ISO-certified diving credentials to 300 meters. The pressed wave pattern dial, inspired by calm coastlines, creates subtle texture beneath the sapphire crystal with anti-reflective coating, while the rose gold-tone unidirectional bezel adds sophisticated warmth to the tool watch aesthetic. At its heart beats the Caliber 6R55, Seiko's in-house 24-jewel automatic movement delivering an impressive 72-hour power reserve—three full days of autonomous timekeeping.
Operating at 21,600 vibrations per hour with manual winding capability and hacking seconds, this movement represents a significant upgrade in the Prospex lineup. The stainless steel case features super-hard coating for scratch resistance, while the thoughtfully redesigned bracelet incorporates mirror-polished center links that complement the refined case finishing. LumiBrite coating on all twelve markers and hands ensures legibility in any conditions, while the date window positioned between 4 and 5 o'clock allows for complete symmetry. The screwdown crown and caseback maintain water integrity, creating a diver that feels as comfortable at resort dinners as it does underwater.
The Seiko Prospex SPB485 introduces a striking new design language to the legendary Prospex collection with its polygonal octagonal bezel and warm gray "Coastal" dial.
This 41.3mm diver represents a bold departure from Seiko's traditional circular bezels while maintaining the brand's ISO-certified diving credentials to 300 meters. The pressed wave pattern dial, inspired by calm coastlines, creates subtle texture beneath the sapphire crystal with anti-reflective coating, while the rose gold-tone unidirectional bezel adds sophisticated warmth to the tool watch aesthetic. At its heart beats the Caliber 6R55, Seiko's in-house 24-jewel automatic movement delivering an impressive 72-hour power reserve—three full days of autonomous timekeeping.
Operating at 21,600 vibrations per hour with manual winding capability and hacking seconds, this movement represents a significant upgrade in the Prospex lineup. The stainless steel case features super-hard coating for scratch resistance, while the thoughtfully redesigned bracelet incorporates mirror-polished center links that complement the refined case finishing. LumiBrite coating on all twelve markers and hands ensures legibility in any conditions, while the date window positioned between 4 and 5 o'clock allows for complete symmetry. The screwdown crown and caseback maintain water integrity, creating a diver that feels as comfortable at resort dinners as it does underwater.
Every new Seiko purchased at Skeie's is backed by their 3-year warranty
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Frequently Asked Questions
We take all jewelry and watches in for review and estimation before beginning any work; the review is complimentary and we will always approve estimates with you before we begin any work.
We cannot give price estimates over the phone or online, as every piece can var
We have a team of expert goldsmiths and jewelers on site, and can work on a large range of repair needs.
Common repairs include ring sizing, polishing, rhodium plating, adjusting chain length, replacing clasps, re-stringing services, and more.
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Articles are accepted for credit or exchange in the U.S. if returned in salable condition within 30 days, accompanied by a sales receipt. Some exclusions may apply.
