TSAO Baltimore Balt-Pilot Worldtimer Polar WhitevsUndone Basecamp Stealth Automatic
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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.

Balt-Pilot Worldtimer Polar White

Basecamp Stealth Automatic
Diameter
40mm
40mm
Lug-to-Lug
48mm
n/a
Thickness
15mm
n/a
Water Resistance
100m
100m
MSRP
$750
$432
lowest
Movement
Seiko NH34
Seiko NH34
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The TSAO Baltimore Balt-Pilot Worldtimer Polar White is described as a statement piece built for explorers, featuring a crisp Arctic dial. On balance, owners view the TSAO Baltimore Balt-Pilot Worldtimer Polar White positively as a statement piece with a crisp Arctic dial.
The Undone Basecamp Stealth Automatic is praised for its versatile 40mm case proportions and the reliability of its Seiko NH34 automatic movement. Owners report it keeps time within approximately 20 seconds per week. Some iterations are critiqued for a date window placement between 4 and 5 o'clock. Overall, owners and reviewers rate the Undone Basecamp Stealth Automatic well for its reliable movement and wearable case size.
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