Side by side
Serica Ref. 5303 Diving ChronometervsDuckworth Prestex Belmont 300 Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
Belmont 300 Automatic42mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Belmont 300 Automatic38h
Water Resistance
Ref. 5303 Diving Chronometer300m
Belmont 300 Automatic300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Belmont 300 Automatic$750
Full specifications
Case
4 specsCategory
Diver
—
Diameter
39mm
42mm
Thickness
12.2mm
13mm
Lug-to-Lug
46.5mm
50mm
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
—
Lume
Super-LumiNova
None
Movement
3 specsCaliber
M100 COSC
Miyota 9039
Power Reserve
42h
38h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
$750
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