Side by side
Serica Ref. 5303 Diving ChronometervsZelos Steel Blue (sellita)
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
Steel Blue (sellita)39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Steel Blue (sellita)40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Steel Blue (sellita)50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Steel Blue (sellita)$629
Full specifications
Case
5 specsCategory
Diver
Dress
Thickness
12.2mm
7.6mm
Lug-to-Lug
46.5mm
39mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m
Crystal & Dial
4 specsCrystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Enamel Black
Steel Blue (Sellita)
Lume
Super-LumiNova
None
Movement
4 specsCaliber
M100 COSC
ETA/Peseux 7001
Type
Automatic
Manual
Power Reserve
42h
40h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
$629
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