Side by side

Longines LONGINES SPIRIT FLYBACK PROTOTYPEvsWilliam Wood Fearless

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
Fearless
William WoodFearless
MSRP $920

At a glance

8 of 29 specs differ
Diameter
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Fearless39mm
Power Reserve
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Fearless40h
Water Resistance
LONGINES SPIRIT FLYBACK PROTOTYPE100m
Fearless100m
MSRP
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400
Fearless$920

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
42mm
39mm
Thickness
17mm
14mm
Lug-to-Lug
49.5mm
39mm
Lug Width
22mm
20mm

Crystal & Dial

1 specs
Dial Color
Green
Yellow

Movement

1 specs
Caliber
L791.4
Seiko NH35

Pricing

1 specs
MSRP
$7,400
$920

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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.

William Wood Fearless

The William Wood Fearless is noted for its wearable 39mm case size and comfortable 45mm lug-to-lug, with a matte black ion-plated finish and colorful rehaut accents. Reviewers highlight its recycled fire hose strap and 100m water resistance, stemming from its firefighter heritage. The Seiko NH35 movement is considered accurate for its price point. On balance, reviewers find the William Wood Fearless to be a well-finished field watch with unique heritage elements.

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