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Serica Ref. 5303 Diving ChronometervsDecima Gatekeeper

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Gatekeeper
DecimaGatekeeper
MSRP $599
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Buy from Decima ↗
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At a glance

11 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Gatekeeper38mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Gatekeeper42h
Water Resistance
Ref. 5303 Diving Chronometer300m
Gatekeeper50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Gatekeeper$599

Full specifications

Case

6 specs
Category
Diver
—
Diameter
39mm
38mm
Thickness
12.2mm
9.9mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
—
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Enamel Black
White
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
M100 COSC
Miyota 9039
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$599
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