Side by side

Bremont Supermarine ChronovsLongines LONGINES SPIRIT FLYBACK PROTOTYPE

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

Supermarine Chrono
BremontSupermarine Chrono
MSRP $6,850
LONGINES SPIRIT FLYBACK PROTOTYPE
LonginesLONGINES SPIRIT FLYBACK PROTOTYPE
MSRP $7,400

At a glance

8 of 29 specs differ
Diameter
Supermarine Chrono43mm
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Power Reserve
Supermarine Chrono40h
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Water Resistance
Supermarine Chrono300m
LONGINES SPIRIT FLYBACK PROTOTYPE100m
MSRP
Supermarine Chrono$6,850
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400

Full specifications

Case

5 specs
Diameter
43mm
42mm
Thickness
15.87mm
17mm
Lug-to-Lug
49.5mm
Material
Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Black
Green

Movement

1 specs
Caliber
BE-50AE
L791.4

Pricing

1 specs
MSRP
$6,850
$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.

Bremont Supermarine Chrono

The Bremont Supermarine Chrono's black dial and understated bezel markings allow it to transition effectively from rugged use to evening events. On balance, owners and reviewers find the Bremont Supermarine Chrono to be a handsome and functional watch, with its versatile dial design being a key strength.

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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