Side by side

Serica Ref. 5303 Diving ChronometervsHELM Vanuatu

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
Vanuatu
HELMVanuatu
MSRP $285

At a glance

10 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Vanuatu42mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Vanuatu40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Vanuatu300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Vanuatu$285

Full specifications

Case

4 specs
Diameter
39mm
42mm
Thickness
12.2mm
14mm
Lug-to-Lug
46.5mm
50mm
Lug Width
20mm
22mm

Crystal & Dial

1 specs
Dial Color
Enamel Black
Black

Movement

4 specs
Caliber
M100 COSC
Seiko Instruments NH35
Power Reserve
42h
40h
Jewels
25
24
Complications
COSC
Date

Pricing

1 specs
MSRP
$1,768
$285

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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.

HELM Vanuatu

Owners widely praise the HELM Vanuatu for its exceptional comfort, with the titanium bracelet frequently cited as "uber-comfortable" and the watch itself being less overbearing on the wrist than comparable dive watches. Reviewers note its great bezel action and overall quality, with one owner finding the purchase satisfactory despite a nearly two-year wait. On balance, owners rate the HELM Vanuatu highly for its wearability and solid build at the price.

From video reviewers

The case finishing is consistently praised. The bracelet is noted as having significant rattle.

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