Side by side

Straton Straton Syncro MKII Mechanical ChronovsLongines LONGINES SPIRIT FLYBACK PROTOTYPE

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

Straton Syncro MKII Mechanical Chrono
StratonStraton Syncro MKII Mechanical Chrono
MSRP $599
LONGINES SPIRIT FLYBACK PROTOTYPE
LonginesLONGINES SPIRIT FLYBACK PROTOTYPE
MSRP $7,400

At a glance

17 of 29 specs differ
Diameter
Straton Syncro MKII Mechanical Chrono40mm
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Power Reserve
Straton Syncro MKII Mechanical Chrono—
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Water Resistance
Straton Syncro MKII Mechanical Chrono100m
LONGINES SPIRIT FLYBACK PROTOTYPE100m
MSRP
Straton Syncro MKII Mechanical Chrono$599
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400

Full specifications

Case

7 specs
Diameter
40mm
42mm
Thickness
12.4mm
17mm
Lug-to-Lug
48mm
49.5mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
—
Brushed and polished
Caseback
Sapphire crystal
Solid

Crystal & Dial

4 specs
Crystal Shape
Domed
Flat
AR Coating
Underside
Inner
Dial Color
—
Green
Indices
—
Applied

Movement

5 specs
Caliber
Seagull ST19
L791.4
Type
Manual
Automatic
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
40h
Jewels
0
25

Pricing

1 specs
MSRP
$599
$7,400

Follow this matchup

Get a note when Straton Syncro MKII Mechanical Chrono vs LONGINES SPIRIT FLYBACK PROTOTYPE gets more votes, a community discussion, or a price drop. No account needed.

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.

Hemel HFC Mechanical Chronograph
Hemelmicro
Air Support

HFC Mechanical Chronograph

15 variantsAir Support
40mm·Manual·100m WR
$550MSRP
—Used
Bremont Terra Nova 42.5 Chronograph
Bremontmicro

Terra Nova 42.5 Chronograph

3 watches · 23 variantsTerra Nova
42.5mm·Automatic·100m WR
$5,700MSRP
—Used
Farer CHRONO-SPORT
Farermicro

CHRONO-SPORT

3 variantsCHRONO-SPORT
41mm·100m WR
$1,775MSRP
—Used
Bremont Supermarine Chrono
Bremontmicro

Supermarine Chrono

8 watches · 39 variantsSupermarine
43mm·Automatic·300m WR
$6,850MSRP
—Used
Furlan Marri Flyback
Furlan Marrimicro

Flyback

3 variantsFlyback
38mm·Manual
$3,107MSRP
—Used
Islander Islander Bridgehampton Racing Chronograph with Asphalt Black Dial #ISL-234
Islandermicro
Under $50

Islander Bridgehampton Racing Chronograph with Asphalt Black Dial #ISL-234

9 watches · 9 variantsUnder $50
40mm·Manual·100m WR
$599MSRP
—Used
William Wood Triumph Vintage Edition
William Woodmicro

Triumph Vintage Edition

4 watches · 6 variantsTriumph
41mm·Automatic·100m WR
$2,995MSRP
—Used
CWC Valjoux 7733 Pilot Chronograph Limited Edition Watch
CWCmicro
Cabot Chronograph

Valjoux 7733 Pilot Chronograph Limited Edition Watch

Ref. cwc-1982-british-military-chronograph
40mm·Automatic·100m WR
$4,163MSRP
—Used
All alternatives to the Straton Syncro MKII Mechanical Chrono →All alternatives to the LONGINES SPIRIT FLYBACK PROTOTYPE →
Explore the full catalog
Adjacent matchups

People also compared

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

Hemel HFC Mechanical ChronographvsLONGINES SPIRIT FLYBACK PROTOTYPEFarer CHRONO-SPORTvsLONGINES SPIRIT FLYBACK PROTOTYPEFurlan Marri FlybackvsLONGINES SPIRIT FLYBACK PROTOTYPEIslander Bridgehampton Racing Chronograph with Asphalt Black Dial #ISL-234vsLONGINES SPIRIT FLYBACK PROTOTYPEBremont Terra Nova 42.5 ChronographvsStraton Syncro MKII Mechanical ChronoBremont Supermarine ChronovsStraton Syncro MKII Mechanical Chrono
Edit this comparisonAdd another watchMore chronograph comparisonsBest Chronograph Watches Under $1,000Explore more 39–43mm watches