Side by side

Serica Ref. 5303 Diving ChronometervsZelos Vitesse

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
Vitesse
ZelosVitesse
MSRP $1,499

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Vitesse40mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Vitesse40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Vitesse50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Vitesse$1,499

Full specifications

Case

5 specs
Category
Diver
Chronograph
Diameter
39mm
40mm
Lug-to-Lug
46.5mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Gulf
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
La Joux-Perret L100
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$1,499

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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.

Zelos Vitesse

Owners widely praise the Zelos Vitesse for its vintage motorsport design and striking dial options, with particular appreciation for the salmon and panda configurations and their finishing. The bracelet, clasp, and overall value at $1200 are frequently highlighted as strong points. Some owners note the watch sits high on the wrist, and a few have observed minor cosmetic imperfections on subdials. The La Joux Perret L100 movement's accuracy varies, with one report of +5 seconds per day, and several owners find the winding action stiff and noisy, the pushers sticky, and the screw-down crown's feel underwhelming. On balance, owners rate the Zelos Vitesse highly for its captivating dial and strong value proposition, despite some reservations about the chronograph's operational feel and case height.

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