Side by side
Serica Ref. 5303 Diving ChronometervsOak & Oscar Batch Nº2
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
Batch Nº238mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Batch Nº242h
Water Resistance
Ref. 5303 Diving Chronometer300m
Batch Nº2100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Batch Nº2$1,775
Full specifications
Case
7 specsCategory
Diver
Field
Diameter
39mm
38mm
Thickness
12.2mm
10.8mm
Lug-to-Lug
46.5mm
44.9mm
Material
Stainless Steel
316L Stainless Steel (navy ceramic coated)
Water Resistance
300m
100m
Caseback
Solid
Solid screw-down
Crystal & Dial
3 specsCrystal Shape
Flat
Double-domed
AR Coating
Yes
Underside
Dial Color
Enamel Black
Blue
Movement
4 specsCaliber
M100 COSC
Modified ETA 2892A2
Beat Rate
28,800 vph
4 vph
Jewels
25
21
Complications
COSC
GMT, Chronograph, Date
Pricing
1 specsMSRP
$1,768
$1,775
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