Side by side
Serica Ref. 5303 Diving ChronometervsOblvlo JM Space
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
JM Space42mm
Power Reserve
Ref. 5303 Diving Chronometer42h
JM Space40h
Water Resistance
Ref. 5303 Diving Chronometer300m
JM Space50m
MSRP
Ref. 5303 Diving Chronometer$1,768
JM Space$315
Full specifications
Case
6 specsCategory
Diver
Sport
Diameter
39mm
42mm
Thickness
12.2mm
12mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
22mm
Water Resistance
300m
50m
Crystal & Dial
2 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Black
Movement
3 specsCaliber
M100 COSC
—
Power Reserve
42h
40h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
$315
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