Side by side

Serica Ref. 5303 Diving ChronometervsCWC Ti300 Titanium 5 Quartz Divers Watch

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
Ti300 Titanium 5 Quartz Divers Watch
CWCTi300 Titanium 5 Quartz Divers Watch
MSRP $999

At a glance

10 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Ti300 Titanium 5 Quartz Divers Watch45mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Ti300 Titanium 5 Quartz Divers Watch40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Ti300 Titanium 5 Quartz Divers Watch300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Ti300 Titanium 5 Quartz Divers Watch$999

Full specifications

Case

4 specs
Diameter
39mm
45mm
Thickness
12.2mm
12.1mm
Lug-to-Lug
46.5mm
47mm
Material
Stainless Steel
Titanium

Crystal & Dial

1 specs
Dial Color
Enamel Black
CWC Ti300 Titanium 5 Quartz Divers Watch

Movement

4 specs
Caliber
M100 COSC
ETA F06.402
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$999

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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.

CWC Ti300 Titanium 5 Quartz Divers Watch

Owners widely praise the CWC Ti300 Titanium 5 Quartz Divers Watch as an amazing value, highlighting its titanium construction, High Accuracy Quartz (HAQ) movement, and fixed lugs that embody a true tool watch ethos. One owner found the watch too small for their preference, listing it new in box for $1,200, while another notes its price at $1,415. On balance, owners rate the CWC Ti300 Titanium 5 Quartz Divers Watch highly for its tool watch design and excellent value proposition.

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