Side by side
Serica Ref. 5303 Diving ChronometervsBeaufort Bicompax
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
Bicompax40.5mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Bicompax63h
Water Resistance
Ref. 5303 Diving Chronometer300m
Bicompax50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Bicompax$1,399
Full specifications
Case
5 specsCategory
Diver
—
Diameter
39mm
40.5mm
Thickness
12.2mm
13.8mm
Lug-to-Lug
46.5mm
47mm
Water Resistance
300m
50m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Salmon
Lume
Super-LumiNova
Super-LumiNova applied to the index and hands for low-light readability.
Movement
4 specsCaliber
M100 COSC
Sellita SW510M BH b
Type
Automatic
Manual
Power Reserve
42h
63h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
$1,399
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