Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Spinnaker Brutus Yellow?

At MSRP the Spinnaker Brutus Yellow is the cheaper of the two at $395, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $1,373 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Spinnaker Brutus Yellow?

The Spinnaker Brutus Yellow wears larger at 43mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 4mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Spinnaker Brutus Yellow?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 150m for the Spinnaker Brutus Yellow.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Spinnaker Brutus Yellow?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 40 hours on the Spinnaker Brutus Yellow.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Spinnaker Brutus Yellow?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the Spinnaker Brutus Yellow uses the SII NH35A.

Side by side

Serica Ref. 5303 Diving ChronometervsSpinnaker Brutus Yellow

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

Spinnaker Brutus Yellow

fleuss-automatic-popeye-bronemies-limited-edition-brutus-yellow-sp-5161-01

MSRP $395

At a glance

13 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Brutus Yellow43mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Brutus Yellow40h

Water Resistance

Ref. 5303 Diving Chronometer300m

Brutus Yellow150m

MSRP

Ref. 5303 Diving Chronometer$1,768

Brutus Yellow$395

Full specifications

Case

6 specs

Diameter

39mm

43mm

Thickness

12.2mm

13mm

Lug-to-Lug

46.5mm

51mm

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

300m

150m

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

Brutus Yellow

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

M100 COSC

SII NH35A

Power Reserve

42h

40h

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$395

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