Seiko Prospex Marinemaster SJE101 1965 Heritage Exhibition Diver
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The Seiko Prospex Marinemaster SJE101 represents a milestone in dive watch evolution, marking the first global Marinemaster collection to feature an exhibition caseback.
This achievement is remarkable given the stringent ISO requirements for 200-meter dive watches, yet Seiko's innovative case architecture and slim Caliber 6L37 movement made it possible. The result is their thinnest mechanical diver at just 12.3mm, offering a sophisticated reinterpretation of Japan's pioneering 1965 dive watch.
The 39.5mm stainless steel case showcases mirror-polished chamfering on both the bezel and case edges, a functional design choice that prevents snagging on dive equipment while creating brilliant light play across its surfaces. The patterned black dial provides exceptional contrast for the LumiBrite-coated hands and markers, framed by a unidirectional elapsed timing bezel with super-hard coating. Through the sapphire exhibition caseback, the 26-jewel automatic movement reveals its meticulous finishing, beating at 28,800 vibrations per hour with a 45-hour power reserve. The newly designed ellipse-shaped bracelet links feature dual-curved, mirror-finished surfaces that flow gracefully around the wrist, complementing the watch's refined proportions.
The Seiko Prospex Marinemaster SJE101 represents a milestone in dive watch evolution, marking the first global Marinemaster collection to feature an exhibition caseback.
This achievement is remarkable given the stringent ISO requirements for 200-meter dive watches, yet Seiko's innovative case architecture and slim Caliber 6L37 movement made it possible. The result is their thinnest mechanical diver at just 12.3mm, offering a sophisticated reinterpretation of Japan's pioneering 1965 dive watch.
The 39.5mm stainless steel case showcases mirror-polished chamfering on both the bezel and case edges, a functional design choice that prevents snagging on dive equipment while creating brilliant light play across its surfaces. The patterned black dial provides exceptional contrast for the LumiBrite-coated hands and markers, framed by a unidirectional elapsed timing bezel with super-hard coating. Through the sapphire exhibition caseback, the 26-jewel automatic movement reveals its meticulous finishing, beating at 28,800 vibrations per hour with a 45-hour power reserve. The newly designed ellipse-shaped bracelet links feature dual-curved, mirror-finished surfaces that flow gracefully around the wrist, complementing the watch's refined proportions.
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Frequently Asked Questions
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