Which is cheaper, the Oblvlo FM SL Day-Date Square or the Hamilton American Classic Boulton Mechanical?

At MSRP the Oblvlo FM SL Day-Date Square is the cheaper of the two at $158, against $1,075 for the Hamilton American Classic Boulton Mechanical — a $917 gap before any retailer discounting.

Which is bigger, the Oblvlo FM SL Day-Date Square or the Hamilton American Classic Boulton Mechanical?

The Oblvlo FM SL Day-Date Square wears larger at 39mm versus 34mm for the Hamilton American Classic Boulton Mechanical — a 5mm difference across the dial.

Which has a longer power reserve, the Oblvlo FM SL Day-Date Square or the Hamilton American Classic Boulton Mechanical?

The Hamilton American Classic Boulton Mechanical carries a 80-hour power reserve against 42 hours on the Oblvlo FM SL Day-Date Square.

What movement does the Oblvlo FM SL Day-Date Square run compared to the Hamilton American Classic Boulton Mechanical?

The Oblvlo FM SL Day-Date Square runs a automatic caliber (Miyota 8215), while the Hamilton American Classic Boulton Mechanical runs a manual (H-50).

Side by side

Oblvlo FM SL Day-Date SquarevsHamilton American Classic Boulton Mechanical

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

Hamilton American Classic Boulton Mechanical

h13519711

MSRP $1,075

At a glance

9 of 29 specs differ

Diameter

FM SL Day-Date Square39mm

American Classic Boulton Mechanical34mm

Power Reserve

FM SL Day-Date Square42h

American Classic Boulton Mechanical80h

Water Resistance

FM SL Day-Date Square50m

American Classic Boulton Mechanical50m

MSRP

FM SL Day-Date Square$158

American Classic Boulton Mechanical$1,075

Full specifications

Case

3 specs

Diameter

39mm

34mm

Thickness

11mm

11.2mm

Lug Width

21mm

22mm

Crystal & Dial

1 specs

Dial Color

Black

White

Movement

4 specs

Caliber

Miyota 8215

H-50

Type

Automatic

Manual

Power Reserve

42h

80h

Jewels

Pricing

1 specs

MSRP

$158

$1,075

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