Side by side

Serica Réf. 5303vsZelos Nova 37

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

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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 Réf. 5303

Owners widely praise the Serica Réf. 5303 for its unique neo-vintage design, sophisticated aesthetics, and excellent finishing, with many highlighting the smooth winding action and the tactile quality of the bezel click as industry-benchmark. The 39mm case is frequently cited as well-proportioned and wearable, especially for smaller wrists. Accuracy figures vary, with one owner reporting +2 seconds per day and another +5.5 seconds per day, while the 42-hour power reserve was noted as a point of desire for longer duration. Some owners have reported significant quality control issues, including dial shifting, non-functional hacking, and misaligned or jammed bezels, with concerns also raised about the Soprod movement and the manufacturer's communication. Overall, owners rate the Serica Réf. 5303 highly for its distinctive design and refined finishing, despite some significant quality control concerns raised by a few.

From video reviewers

The COSC and Grand Chronomètre Serica® certifications are a significant strength. No shared weaknesses were identified.

Zelos Nova 37

Owners widely praise the Zelos Nova 37's spectacular 37mm dimensions and extremely light, thin wearability. The meteorite dial is frequently highlighted as a captivating feature, though some reviewers suggest simpler indices would improve legibility over the Arabic numerals. The watch is considered a considerable value at $1,999. On balance, owners and reviewers rate the Zelos Nova 37 highly for its excellent dimensions and dial execution at the price.

From video reviewers

The wafer-thin case and intricate dial textures are standout features. The quality of the stock leather strap is a shared concern. Reviewers differed on whether the 37mm or 38mm case size was more accurate.

At a glance

12 of 29 specs differ
Diameter
Réf. 530339mm
Nova 3737mm
Power Reserve
Réf. 530342h
Nova 37
Water Resistance
Réf. 5303300m
Nova 3750m
MSRP
Réf. 5303$1,857
Nova 37$899

Full specifications

Case

6 specs
Category
Dress
Diameter
39mm
37mm
Thickness
12.2mm
7mm
Lug-to-Lug
46.5mm
37mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Salmon

Movement

3 specs
Caliber
Soprod M100
ETA/Peseux 7001
Type
Automatic
Manual
Power Reserve
42h
0h

Pricing

1 specs
MSRP
$1,857
$899
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