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gptkbp:instance_of
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gptkb:watch
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gptkbp:availability
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varies by retailer
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gptkbp:brand
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gptkb:Seiko
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gptkbp:caliber
|
7 A38
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gptkbp:collection
|
Spring Drive collection
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gptkbp:community
|
enthusiast forums
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gptkbp:complications
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gptkb:chronograph
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gptkbp:design_influence
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Japanese craftsmanship
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gptkbp:dial_color
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gptkb:black
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gptkbp:features
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date display
automatic winding
power reserve indicator
quartz accuracy
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gptkbp:finish
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polished and brushed
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gptkbp:glass_type
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sapphire crystal
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https://www.w3.org/2000/01/rdf-schema#label
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Seiko Spring Drive 7 A38
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gptkbp:legacy
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part of Seiko's innovative history
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gptkbp:manufacturer
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gptkb:Seiko
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gptkbp:market_segment
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luxury
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gptkbp:material
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stainless steel
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gptkbp:movement
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gptkb:Seiko_5
7 A38 movement
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gptkbp:performance
|
±15 seconds per month
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gptkbp:popularity
|
high among collectors
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gptkbp:power_source
|
mechanical and electrical energy
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gptkbp:production_location
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gptkb:Japan
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gptkbp:release_date
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varies by model
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|
gptkbp:retail_price
|
varies by model
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gptkbp:reviews
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generally positive
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gptkbp:signage
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luminous hands
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gptkbp:strap_material
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stainless steel
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gptkbp:style
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gptkb:sports
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gptkbp:target_audience
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watch enthusiasts
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gptkbp:type_of_care
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requires regular maintenance
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gptkbp:watch_case_diameter
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approximately 40 mm
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gptkbp:watch_features
|
2 years
analog
casual
timekeeping
screw-down crown
limited options available
luminous markers
approximately 12 mm
various straps available
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gptkbp:watch_service_interval
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5 years
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gptkbp:water_resistance
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gptkb:100_meters
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gptkbp:weight
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approximately 150 grams
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gptkbp:width
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20 mm
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gptkbp:year_established
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gptkb:1980s
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gptkbp:bfsParent
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gptkb:Seiko_5
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gptkbp:bfsLayer
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5
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