Side by side
Serica Ref. 5303 Diving ChronometervsUgly Watch Co Adamas Aster
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
Adamas Aster42mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Adamas Aster40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Adamas Aster100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Adamas Aster$1,160
Full specifications
Case
5 specsCategory
Diver
—
Diameter
39mm
42mm
Thickness
12.2mm
12mm
Lug-to-Lug
46.5mm
46mm
Water Resistance
300m
100m
Crystal & Dial
2 specsDial Color
Enamel Black
Black Mother of Pearl
Lume
Super-LumiNova
None
Movement
3 specsCaliber
M100 COSC
Miyota 9015
Power Reserve
42h
40h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
$1,160
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