Side by side

Serica Ref. 5303 Diving ChronometervsRedux COURG: Type-A

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

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Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
COURG: Type-A
ReduxCOURG: Type-A
MSRP $395
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At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
COURG: Type-A39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
COURG: Type-A41h
Water Resistance
Ref. 5303 Diving Chronometer300m
COURG: Type-A150m
MSRP
Ref. 5303 Diving Chronometer$1,768
COURG: Type-A$395

Full specifications

Case

5 specs
Category
Diver
—
Thickness
12.2mm
13.7mm
Lug-to-Lug
46.5mm
46mm
Material
Stainless Steel
Titanium
Water Resistance
300m
150m

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
Seiko NH35A
Power Reserve
42h
41h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$395
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