Which is cheaper, the Oblvlo FM SL Day-Date Square or the Seiko Essentials Tank (Ladies)?

At MSRP the Oblvlo FM SL Day-Date Square is the cheaper of the two at $158, against $365 for the Seiko Essentials Tank (Ladies) — a $207 gap before any retailer discounting.

Which is bigger, the Oblvlo FM SL Day-Date Square or the Seiko Essentials Tank (Ladies)?

The Oblvlo FM SL Day-Date Square wears larger at 39mm versus 26mm for the Seiko Essentials Tank (Ladies) — a 13mm difference across the dial.

Which has better water resistance, the Oblvlo FM SL Day-Date Square or the Seiko Essentials Tank (Ladies)?

The Oblvlo FM SL Day-Date Square is rated to 50m versus 5m for the Seiko Essentials Tank (Ladies).

Which has a longer power reserve, the Oblvlo FM SL Day-Date Square or the Seiko Essentials Tank (Ladies)?

The Oblvlo FM SL Day-Date Square carries a 42-hour power reserve against 40 hours on the Seiko Essentials Tank (Ladies).

What movement does the Oblvlo FM SL Day-Date Square run compared to the Seiko Essentials Tank (Ladies)?

The Oblvlo FM SL Day-Date Square runs a automatic caliber (Miyota 8215), while the Seiko Essentials Tank (Ladies) runs a quartz (4N30).

Side by side

Oblvlo FM SL Day-Date SquarevsSeiko Essentials Tank (Ladies)

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Oblvlo FM SL Day-Date Square

FM-SL-DD-D

MSRP $158

Seiko Essentials Tank (Ladies)

swr078

MSRP $365

At a glance

10 of 29 specs differ

Diameter

FM SL Day-Date Square39mm

Essentials Tank (Ladies)26mm

Power Reserve

FM SL Day-Date Square42h

Essentials Tank (Ladies)40h

Water Resistance

FM SL Day-Date Square50m

Essentials Tank (Ladies)50m

MSRP

FM SL Day-Date Square$158

Essentials Tank (Ladies)$365

Full specifications

Case

4 specs

Diameter

39mm

26mm

Thickness

11mm

6.4mm

Lug-to-Lug

46mm

34.8mm

Lug Width

21mm

15mm

Crystal & Dial

1 specs

Crystal

Sapphire

Hardlex

Movement

4 specs

Caliber

Miyota 8215

4N30

Type

Automatic

Quartz

Power Reserve

42h

40h

Jewels

Pricing

1 specs

MSRP

$158

$365

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