Side by side

Longines LONGINES SPIRIT FLYBACK PROTOTYPEvsZelos Thresher 44

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
Thresher 44
ZelosThresher 44
MSRP $549

At a glance

10 of 29 specs differ
Diameter
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Thresher 4444mm
Power Reserve
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Thresher 4440h
Water Resistance
LONGINES SPIRIT FLYBACK PROTOTYPE100m
Thresher 44500m
MSRP
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400
Thresher 44$549

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42mm
44mm
Thickness
17mm
12.8mm
Lug-to-Lug
49.5mm
44mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
500m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Green
Grey

Movement

1 specs
Caliber
L791.4
Miyota 9015

Pricing

1 specs
MSRP
$7,400
$549

Follow this matchup

Get a note when LONGINES SPIRIT FLYBACK PROTOTYPE vs Zelos Thresher 44 gets more votes, a community discussion, or a price drop. No account needed.

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 Thresher 44

Owners widely praise the Zelos Thresher 44, with one owner noting its finish has proven remarkably scratch-resistant. However, one owner found the finishing on their hammered grey variant not as well done as expected. The Zelos Thresher 44 with an agate dial sold out in 90 seconds, with one owner receiving theirs and noting the bracelet was fully wrapped. Overall, owners rate the Zelos Thresher 44 highly for its desirability and scratch-resistant finish.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.