Side by side
Serica Ref. 5303 Diving ChronometervsSerket Watch Co Reef X Diver Black DLC
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
Reef X Diver Black DLC43mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Reef X Diver Black DLC—
Water Resistance
Ref. 5303 Diving Chronometer300m
Reef X Diver Black DLC200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Reef X Diver Black DLC—
Full specifications
Case
6 specsCategory
Diver
—
Diameter
39mm
43mm
Thickness
12.2mm
12.7mm
Lug-to-Lug
46.5mm
50mm
Lug Width
20mm
22mm
Water Resistance
300m
200m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Pink
Lume
Super-LumiNova
None
Movement
3 specsCaliber
M100 COSC
Seiko NH35
Power Reserve
42h
—
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
—
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