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gptkbp:instance_of
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gptkb:wristwatch
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gptkbp:bfsLayer
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5
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gptkbp:bfsParent
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gptkb:Vintage_Seiko_models
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gptkbp:availability
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available in vintage markets
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gptkbp:body_style
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screw-down
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gptkbp:brand
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gptkb:Seiko
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gptkbp:caliber
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6138
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gptkbp:case_types
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round
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gptkbp:color
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black and silver
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gptkbp:color_options
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gptkb:black
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gptkbp:community
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enthusiast community
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gptkbp:community_events
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often discussed in forums
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gptkbp:complications
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tachymeter
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gptkbp:current_use
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$500-$1000
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gptkbp:era
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1970s era
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gptkbp:events
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often featured in watch fairs
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gptkbp:faced
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analog
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gptkbp:features
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gptkb:physicist
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gptkbp:function
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date display
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gptkbp:has_luminosity
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gptkb:battle
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https://www.w3.org/2000/01/rdf-schema#label
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Seiko 6138-0040
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gptkbp:influence
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influenced modern chronographs
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gptkbp:inscription
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luminous hands
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gptkbp:investment
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considered a good investment
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gptkbp:is_popular_in
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high among collectors
increasing among collectors
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gptkbp:legacy
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part of Seiko's history
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gptkbp:lens_type
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hardlex
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gptkbp:market
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gptkb:collection
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gptkbp:material
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stainless steel
rotating
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gptkbp:movement
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automatic
mechanical
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gptkbp:origin
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gptkb:Japan
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gptkbp:power_reserve
|
up to 45 hours
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gptkbp:price
|
$200
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gptkbp:production_years
|
1970s
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gptkbp:rarity
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limited production
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gptkbp:size
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40mm
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gptkbp:style
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gptkb:Basketball_Player
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gptkbp:type_of_care
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requires careful handling
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gptkbp:user_reviews
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generally positive
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gptkbp:viewership
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unique design and history
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gptkbp:watch_features
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gptkb:Seiko_Instruments_Inc.
gptkb:submarine
varies
casual
analog display
requires regular servicing
screw-down case back
can be restored by professionals
metal bracelet
vintage watch
comes with original papers
can be customized with straps
chronograph, date, tachymeter
compared to other vintage watches
manual and warranty
may include extra links
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gptkbp:water_resistance
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70 meters
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gptkbp:weight
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150 grams
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gptkbp:year_created
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gptkb:1970
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