Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Smith & Bradley Atlantis Sport?

At MSRP the Smith & Bradley Atlantis Sport is the cheaper of the two at $249, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $1,519 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Smith & Bradley Atlantis Sport?

The Smith & Bradley Atlantis Sport wears larger at 44mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 5mm difference across the dial.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Smith & Bradley Atlantis Sport?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 40 hours on the Smith & Bradley Atlantis Sport.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Smith & Bradley Atlantis Sport?

The Serica Ref. 5303 Diving Chronometer runs a automatic caliber (M100 COSC), while the Smith & Bradley Atlantis Sport runs a quartz (Ronda).

Side by side

Serica Ref. 5303 Diving ChronometervsSmith & Bradley Atlantis Sport

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

Serica Ref. 5303 Diving Chronometer

5303-1-diving-chronometer

MSRP $1,768

Smith & Bradley Atlantis Sport

atlantis-sport-blue-dive-watch

MSRP $249

At a glance

11 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Atlantis Sport44mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Atlantis Sport40h

Water Resistance

Ref. 5303 Diving Chronometer300m

Atlantis Sport300m

MSRP

Ref. 5303 Diving Chronometer$1,768

Atlantis Sport$249

Full specifications

Case

4 specs

Diameter

39mm

44mm

Thickness

12.2mm

12mm

Lug-to-Lug

46.5mm

46mm

Lug Width

20mm

22mm

Crystal & Dial

2 specs

Dial Color

Enamel Black

Black

Lume

Super-LumiNova

Superluminova

Movement

4 specs

Caliber

M100 COSC

Ronda

Type

Automatic

Quartz

Power Reserve

42h

40h

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$249

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