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1 Variant
Retail MSRP
$365
Low
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Avg
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High
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Static data
Case
26mm
Power Reserve
—
Movement
Quartz
Water Resistance
50m
01
Case Dimensions
Diameter26mm
Thickness6.4mm
Lug-to-Lug34.8mm
Lug Width15mm
02
Case Build
Water Resistance50m
03
Crystal & Dial
CrystalHardlex
04
Movement
05
Design Language
Case shapeRectangular
Dial styleTextured
BezelFixed
Bracelet / strapLug-attached bracelet
HandsDauphine
AI-detected from product image · 5/22/2026
In a nutshell
The Seiko Essentials Tank (Ladies) (ref. swr078) is a quartz dress watch, with a 26mm case, 6.4mm thick, powered by the 4N30 movement. Water resistance is rated to 50m, under a hardlex crystal. Manufacturer MSRP is $365.