gptkbp:instance_of
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gptkb:Apple_Watch
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gptkbp:brand
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gptkb:Seiko
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gptkbp:color_variation
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gptkb:Black
gptkb:Green
gptkb:Blue
gptkb:silver
gptkb:orange
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gptkbp:complications
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gptkb:chronograph
GMT function
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gptkbp:dial_color
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gptkb:Black
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gptkbp:diameter
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40mm
44mm
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gptkbp:features
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Helium escape valve
Water resistant
Shock resistant
Date display
Scratch resistant
Anti-magnetic
Luminous hands
Rotating bezel
Screw-down crown
Diver's certification
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gptkbp:first_introduced
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gptkb:1965
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gptkbp:glass_type
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gptkb:Hardlex
gptkb:Diamonds
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gptkbp:historical_significance
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Popular in the 1970s
First Japanese diver's watch
Influenced modern dive watch designs
Used in various underwater explorations
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https://www.w3.org/2000/01/rdf-schema#label
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Seiko Diver's Watches
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gptkbp:is_popular_among
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Snorkelers
Scuba divers
Outdoor adventurers
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gptkbp:maintenance
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Regular servicing recommended
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gptkbp:market_segment
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Luxury
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gptkbp:material
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Stainless steel
Unidirectional
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gptkbp:movement
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gptkb:granite
gptkb:Automatic
Mechanical
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gptkbp:notable_models
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gptkb:Seiko_SKX007
gptkb:Seiko_6309
gptkb:Seiko_Prospex
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gptkbp:origin
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gptkb:Japan
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gptkbp:price_range
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$300 -$1000
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gptkbp:strap_material
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gptkb:Rubber
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gptkbp:style
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Functional
Sporty
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gptkbp:target_audience
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Divers
Watch enthusiasts
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gptkbp:warranty
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2 years
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gptkbp:water_resistance
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gptkb:200_meters
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gptkbp:bfsParent
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gptkb:Seiko_Holdings_Corporation
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gptkbp:bfsLayer
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5
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