Chronotechna NanoBlackvsMarathon Jeep Willys SSGPM
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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.

NanoBlack

Jeep Willys SSGPM
Diameter
42mm
41mm
Lug-to-Lug
47.9mm
lowest
48mm
Thickness
11.7mm
11mm
lowest
Water Resistance
100m
highest
30m
Power Reserve
38h
n/a
MSRP
n/a
$780
Movement
Sellita SW200-1
Sellita SW210-1
Case
6 specsCrystal & Dial
1 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Chronotechna NanoBlack is noted for its pigment issues, with over 50% of the NanoBlack and VantaBlack pigments being rejected and requiring dial recalls and repainting. On balance, the Chronotechna NanoBlack is not rated well due to significant pigment and dial issues.
Owners praise the Marathon Jeep Willys SSGPM's handsome retro design, nicely shaped 41mm case, and attractive, clean dials with great hands, noting good value at $650 USD. Some owners find the corporate Jeep logo detracts from the dial's appeal and goes against Marathon's heritage. The lugs extend far on smaller wrists, and the included leather strap may need replacement with regular wear. Overall, owners and reviewers rate the Marathon Jeep Willys SSGPM highly for its retro aesthetics and value, despite minor strap and branding concerns.
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