Side by side
Serica Ref. 5303 Diving ChronometervsZRC 1904 Z.R.C Grands Fonds Heritage
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
Z.R.C Grands Fonds Heritage39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Z.R.C Grands Fonds Heritage41h
Water Resistance
Ref. 5303 Diving Chronometer300m
Z.R.C Grands Fonds Heritage300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Z.R.C Grands Fonds Heritage$3,290
Full specifications
Case
3 specsCategory
Diver
—
Thickness
12.2mm
2.4mm
Lug-to-Lug
46.5mm
46mm
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
None
Movement
3 specsCaliber
M100 COSC
Sellita SW200-1
Power Reserve
42h
41h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
$3,290
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