Side by side

Serica Ref. 5303 Diving ChronometervsLe Forban Sécurité Mer La Brestoise

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
La Brestoise39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
La Brestoise42h
Water Resistance
Ref. 5303 Diving Chronometer300m
La Brestoise150m
MSRP
Ref. 5303 Diving Chronometer$1,768
La Brestoise

Full specifications

Case

7 specs
Category
Diver
Diameter
39mm
39mm
Thickness
12.2mm
12.7mm
Lug-to-Lug
46.5mm
45mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
150m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Miyota 8215
Power Reserve
42h
42h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Serica Ref. 5303 Diving Chronometer vs Le Forban Sécurité Mer La Brestoise gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.