Side by side
Serica Ref. 5303 Diving ChronometervsMaystone Watch Co Prosperity GMT
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
Prosperity GMT38mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Prosperity GMT41h
Water Resistance
Ref. 5303 Diving Chronometer300m
Prosperity GMT100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Prosperity GMT$443
Full specifications
Case
5 specsCategory
Diver
—
Diameter
39mm
38mm
Thickness
12.2mm
11.9mm
Lug-to-Lug
46.5mm
46mm
Water Resistance
300m
100m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Red
Lume
Super-LumiNova
string
Movement
3 specsCaliber
M100 COSC
Seiko NH34
Power Reserve
42h
41h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
—
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