Hanhart Fly Navy Aerosphere, 42 mmvsYema Navygraf Marine Nationale CMM.10

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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.

Fly Navy Aerosphere, 42 mm

Navygraf Marine Nationale CMM.10
Diameter
42mm
39mm
Lug-to-Lug
49mm
46mm
lowest
Thickness
12.9mm
11mm
lowest
Water Resistance
300m
highest
100m
Power Reserve
38h
n/a
MSRP
$2,632
$1,614
lowest
Movement
Seiko NH90
Yema CMM.10
Case
6 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Hanhart FLY NAVY Aerosphere, 42 mm is widely praised for its legibility and good fit and finish, with owners finding it light and comfortable on the wrist. Reviewers and owners alike appreciate the matte navy blue dial and the functional lume. One owner notes the price of $1670 USD. Scratch resistance is flagged as a concern by one forum member. Overall, owners rate the Hanhart FLY NAVY Aerosphere, 42 mm highly for its legibility and comfortable wearability at its price point.
The Yema Navygraf Marine Nationale CMM.10 is lauded for its vibrant blue dial and bezel, a clean and legible display, and its in-house CMM.10 automatic movement. Reviewers highlight the 70-hour power reserve and a price point under $2,000 as significant strengths. However, the steel bracelet's clasp is consistently noted as rattly and difficult to open, with one review describing it as feeling slightly cheap. The watch features a 39mm case with a blue sapphire bezel insert and a matte navy dial. Overall, reviewers praise the Yema Navygraf Marine Nationale CMM.10 for its attractive design and strong value proposition, despite minor criticisms of the bracelet clasp.
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