Side by side

Longines HYDROCONQUESTvsLongines LONGINES SPIRIT FLYBACK PROTOTYPE

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

HYDROCONQUEST
LonginesHYDROCONQUEST
MSRP $2,000
LONGINES SPIRIT FLYBACK PROTOTYPE
LonginesLONGINES SPIRIT FLYBACK PROTOTYPE
MSRP $7,400

At a glance

19 of 29 specs differ
Diameter
HYDROCONQUEST41mm
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Power Reserve
HYDROCONQUEST72h
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Water Resistance
HYDROCONQUEST300m
LONGINES SPIRIT FLYBACK PROTOTYPE100m
MSRP
HYDROCONQUEST$2,000
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400

Full specifications

Case

9 specs
Category
Diver
Chronograph
Diameter
41mm
42mm
Thickness
11.9mm
17mm
Lug-to-Lug
53.5mm
49.5mm
Lug Width
21mm
22mm
Material
Ceramic
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
100m
Caseback
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Indices
Applied

Movement

6 specs
Caliber
L888.5
L791.4
Beat Rate
0 vph
28,800 vph
Power Reserve
72h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$2,000
$7,400

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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 HYDROCONQUEST

Owners widely praise the Longines Hydroconquest for its attractive sunburst blue dial and accurate timekeeping, with one owner reporting a loss of only 2 seconds per day. However, the bracelet is frequently criticized for lacking micro-adjustments and having pinch-prone links, and the screw-down crown is noted as inconvenient and difficult to operate by multiple owners. Some owners also flag the bezel action as ratchety with back play, and one owner found the lugs sharp and the overall design uncomfortable, leading them to sell the watch. On balance, owners appreciate the Longines Hydroconquest's aesthetic appeal and value, despite significant reservations about its bracelet and crown usability.

From video reviewers

The bezel action is praised for its smooth and precise rotation. Lume brightness is a shared weakness, found to be somewhat lacking. Reviewers disagreed on the watch's value proposition compared to alternatives.

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.

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