Side by side

Serica Ref. 5303 Diving ChronometervsCWC British Military G10 Quartz Watch - Navigator

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
British Military G10 Quartz Watch - Navigator
CWCBritish Military G10 Quartz Watch - Navigator
MSRP $274

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
British Military G10 Quartz Watch - Navigator36.5mm
Power Reserve
Ref. 5303 Diving Chronometer42h
British Military G10 Quartz Watch - Navigator40h
Water Resistance
Ref. 5303 Diving Chronometer300m
British Military G10 Quartz Watch - Navigator50m
MSRP
Ref. 5303 Diving Chronometer$1,768
British Military G10 Quartz Watch - Navigator$274

Full specifications

Case

6 specs
Category
Diver
Pilot
Diameter
39mm
36.5mm
Thickness
12.2mm
12mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
18mm
Water Resistance
300m
50m

Crystal & Dial

3 specs
Crystal
Sapphire
Acrylic
AR Coating
Yes
Inner
Dial Color
Enamel Black
CWC British Military G10 Quartz Watch - Navigator (with Date)

Movement

4 specs
Caliber
M100 COSC
ETA F06.412
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$274

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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 British Military G10 Quartz Watch - Navigator

The CWC British Military G10 Quartz Watch - Navigator is praised for its legible, heritage-inspired design and robust, bead-blasted 316L stainless steel case with welded spring bars. Owners report it is tough and suitable for everyday wear, with one noting very little wear after extended use. Lume performance is considered adequate by reviewers, and its 50m water resistance is an improvement over vintage issued models. The watch is noted for its practicality and military history. Some owners feel it lacks the "soul" of vintage models, and the rotor of its Sellita SW200-1 movement is described as noticeably audible. Overall, owners and reviewers rate the CWC British Military G10 Quartz Watch - Navigator highly for its functional, heritage-inspired design and robust build at its price point.

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