Straton Syncro MKII Mechanical ChronovsLongines Conquest Chronograph

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Straton Syncro MKII Mechanical Chrono at true scale

Syncro MKII Mechanical Chrono

Longines Conquest Chronograph at true scale

Conquest Chronograph

Diameter

40mm

42mm

Lug-to-Lug

48mm

lowest

50.2mm

Thickness

12.4mm

lowest

14.3mm

Water Resistance

100m

100m

MSRP

$599

lowest

$4,250

Movement

Seagull ST19 (family)

Longines L898.5

Case

6 specs
Diameter
40mm
42mm
Thickness
12.4mm
14.3mm
Lug-to-Lug
48mm
50.2mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Caseback
Sapphire crystal
n/a

Crystal & Dial

3 specs
Crystal Shape
Domed
n/a
AR Coating
Underside
n/a
Dial Color
n/a
Green

Movement

2 specs
Caliber
Seagull ST19 (family)
Longines L898.5
Type
Manual
Automatic

Pricing

1 specs
MSRP
$599
$4,250
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Straton Syncro MKII Mechanical Chrono

Owners widely praise the Straton Syncro MKII Mechanical Chrono's retro racing aesthetic and extensive customization options, with the fully lumed dial noted for legibility. Some owners find the 40mm case comfortable, while others report it wears larger than its dimensions, and the included Milanese bracelet's clasp is considered outdated. The Seagull ST19 manual wind movement is the sole affordable mechanical chronograph option, though its reliability receives mixed responses. On balance, owners and reviewers value the Straton Syncro MKII Mechanical Chrono for its distinctive retro design and customization at its price point.

Longines Conquest Chronograph

Owners praise the Longines Conquest Chronograph as a stylish, solid, and easy-to-use automatic chronograph with a bold, sporty design suitable for everyday wear, purchased new for €2,500. Accuracy averages around -3.3 seconds per day, considered normal for a non-certified mechanical watch. The 42mm case, at 14mm to 14.3mm thick, wears larger than expected and can feel top-heavy. One owner suggested the movement could be improved with a flyback function. Overall, owners rate the Longines Conquest Chronograph highly for its bold design and everyday wearability at its price point.