DuFrane Watches Travis 39mm MkII Mechanical DivingvsIsotope Hydrium

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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.

DuFrane Watches Travis 39mm MkII Mechanical Diving at true scale

Travis 39mm MkII Mechanical Diving

Isotope Hydrium at true scale

Hydrium

Diameter

39mm

40mm

Lug-to-Lug

47mm

n/a

Thickness

12mm

lowest

12.9mm

Water Resistance

200m

300m

highest

Power Reserve

38h

68h

highest

MSRP

$899

lowest

$1,701

Movement

Sellita SW200-1

La Joux-Perret G101

Case

5 specs
Diameter
39mm
40mm
Thickness
12mm
12.9mm
Lug-to-Lug
47mm
n/a
Lug Width
20mm
n/a
Water Resistance
200m
300m

Movement

2 specs
Caliber
Sellita SW200-1
La Joux-Perret G101
Power Reserve
38h
68h

Pricing

1 specs
MSRP
$899
$1,701
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Reviews

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

DuFrane Watches Travis 39mm MkII Mechanical Diving

Owners widely praise the DuFrane Watches Travis 39mm MkII Mechanical Diving Watch for its comfortable 39mm sizing and attractive dial features like depth and a sandwich chapter ring, with many appreciating the included strap options. Some owners report the bezel is difficult to turn and question its utility as a dive watch feature. On balance, owners rate the DuFrane Watches Travis 39mm MkII Mechanical Diving Watch highly for its wearability and dial aesthetics, particularly within the American microbrand space.

Isotope Hydrium

Owners widely report Isotope Hydrium watches offer unique and stunning designs with build quality considered a league above. Reviewers praise the watches for their compelling tool watch nature, originality, and strong value proposition, often highlighting specific elements like matte black dials, luminescent markings, Cerakote case finishes, and fully lumed dials. The 40mm micro-blasted stainless steel case is frequently noted for its comfortable wearability and Streamline Moderne-inspired design, blending familiar and new elements. However, the Landeron 24 automatic movement is consistently cited as running within +/- 12 seconds per day, with a 40-hour power reserve. Some reviewers also note the watch's thickness, around 14.9mm, can contribute to a chunky feel despite the 40mm diameter. Overall, owners and reviewers rate the Isotope Hydrium highly for its distinctive design and excellent value at its price point.