Side by side
Serica Ref. 5303 Diving ChronometervsStewart Dawson Darkest Hour
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
Darkest Hour39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Darkest Hour41h
Water Resistance
Ref. 5303 Diving Chronometer300m
Darkest Hour100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Darkest Hour$1,567
Full specifications
Case
5 specsCategory
Diver
—
Thickness
12.2mm
13mm
Lug-to-Lug
46.5mm
50mm
Material
Stainless Steel
904L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Brown
Lume
Super-LumiNova
None
Movement
3 specsCaliber
M100 COSC
Sellita SW200
Power Reserve
42h
41h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
—
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