Longines HydroConquest 39mm Automatic Diving WatchvsUnimatic Modello Due U2-BN

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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.

Longines HydroConquest 39mm Automatic Diving Watch at true scale

HydroConquest 39mm Automatic Diving Watch

Unimatic Modello Due U2-BN at true scale

Modello Due U2-BN

Diameter

39mm

38.5mm

Water Resistance

300m

300m

MSRP

$1,275

$690

lowest

Movement

L633

Seiko NH35

Case

1 specs
Diameter
39mm
38.5mm

Crystal & Dial

1 specs
Dial Color
n/a
n/a

Movement

2 specs
Caliber
L633
Seiko NH35
Complications
Date
None

Pricing

1 specs
MSRP
$1,275
$690
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Reviews

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

Longines HydroConquest 39mm Automatic Diving Watch

Owners widely praise the Longines HydroConquest 39mm Automatic Diving Watch for its excellent value, comfortable wearability on smaller wrists, and elegant design. Reviewers highlight its crisp 120-click bezel, high-quality steel bracelet, and finishing comparable to more expensive timepieces. Some owners note mediocre lume performance and the use of split pins for bracelet sizing. Accuracy is reported around 5 seconds per day. Overall, owners rate the Longines HydroConquest 39mm Automatic Diving Watch highly for its exceptional value and comfortable, elegant design.

Unimatic Modello Due U2-BN

Owners widely praise the Unimatic Modello Due U2-BN's stark brutalist design and finishing, with one owner finding the 38.5mm case "just chunky enough" for their frame. However, some owners report the flat lugs make the 38.5mm case wear bulkier than its diameter suggests, and one owner questions the value of the Seiko NH35 movement at the price point. On balance, owners and reviewers find the Unimatic Modello Due U2-BN to be a fair value, appreciated for its appealing design and finishing.