Side by side
Serica Ref. 5303 Diving ChronometervsOrient AC0Q-40 RA-AC0Q05P10B
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
AC0Q-40 RA-AC0Q05P10B39.9mm
Power Reserve
Ref. 5303 Diving Chronometer42h
AC0Q-40 RA-AC0Q05P10B40h
Water Resistance
Ref. 5303 Diving Chronometer300m
AC0Q-40 RA-AC0Q05P10B200m
MSRP
Ref. 5303 Diving Chronometer$1,768
AC0Q-40 RA-AC0Q05P10B$355
Full specifications
Case
3 specsDiameter
39mm
39.9mm
Thickness
12.2mm
12.8mm
Water Resistance
300m
200m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Orange
Lume
Super-LumiNova
None
Movement
5 specsCaliber
M100 COSC
F6722
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
40h
Jewels
25
22
Complications
COSC
Date
Pricing
1 specsMSRP
$1,768
$355
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