Side by side

Longines LONGINES SPIRIT FLYBACK PROTOTYPEvsZelos Nova 37

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

LONGINES SPIRIT FLYBACK PROTOTYPE
LonginesLONGINES SPIRIT FLYBACK PROTOTYPE
MSRP $7,400
Nova 37
ZelosNova 37
MSRP $899

At a glance

12 of 29 specs differ
Diameter
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Nova 3737mm
Power Reserve
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Nova 3740h
Water Resistance
LONGINES SPIRIT FLYBACK PROTOTYPE100m
Nova 3750m
MSRP
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400
Nova 37$899

Full specifications

Case

7 specs
Category
Chronograph
Dress
Diameter
42mm
37mm
Thickness
17mm
7mm
Lug-to-Lug
49.5mm
37mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Green
Salmon

Movement

2 specs
Caliber
L791.4
ETA 7001
Type
Automatic
Manual

Pricing

1 specs
MSRP
$7,400
$899

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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.

LONGINES SPIRIT FLYBACK PROTOTYPE

Owners widely praise the Longines Spirit Flyback Prototype for its attractive finishing, COSC-certified movement, and value as a flyback chronograph. Reviewers highlight its refined 39.5mm case and simplified dial, while some owners appreciate the reduced thickness and improved wearability compared to larger variants, with a lug-to-lug distance noted as potentially long for smaller wrists. The watch features a 68-hour power reserve and a bespoke L791.4 movement. However, the case thickness is a consistent point of discussion, with multiple sources citing 17mm, though some reviewers suggest thoughtful design makes it wear closer to 13.5-14mm. Owners are split on the dial's aesthetic, with some preferring previous configurations with gold subdial rings and concentric textures over the current flat matte dial and cut-off numbers. The leather strap is also noted as stiff and pinching.

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.

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