Side by side
Serica Ref. 5303 Diving ChronometervsDuckworth Prestex Original Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
Original Automatic39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Original Automatic40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Original Automatic200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Original Automatic$775
Full specifications
Case
3 specsCategory
Diver
—
Thickness
12.2mm
11mm
Water Resistance
300m
200m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
—
Lume
Super-LumiNova
None
Movement
3 specsCaliber
M100 COSC
Miyota 82S5
Power Reserve
42h
40h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
$775
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