Side by side

Serica Ref. 5303 Diving ChronometervsDryden Chrono Diver Series 1

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Chrono Diver Series 1
DrydenChrono Diver Series 1
MSRP $349

At a glance

15 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Chrono Diver Series 142mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Chrono Diver Series 140h
Water Resistance
Ref. 5303 Diving Chronometer300m
Chrono Diver Series 1101m
MSRP
Ref. 5303 Diving Chronometer$1,768
Chrono Diver Series 1$349

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
39mm
42mm
Thickness
12.2mm
13.5mm
Lug-to-Lug
46.5mm
49mm
Lug Width
20mm
22mm
Water Resistance
300m
101m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Enamel Black
Steel
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
M100 COSC
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$349

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

Dryden Chrono Diver Series 1

The Dryden Chrono Diver Series 1 is a 42mm mechaquartz chronograph featuring a dual-curved sapphire crystal and 100m water resistance. Owners note the VK63 movement's characteristic chronograph hand not resetting perfectly to zero, a trait present on this specific watch. The case exhibits polished chamfers on the upper lugs, and it utilizes Swiss Superluminova BGW9. On balance, owners appreciate the classic case shape and dial design of the Dryden Chrono Diver Series 1 at its price point, despite the mechaquartz movement's known reset behavior.

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