Elliot Brown HOLTON AUTO GMT: NIVO 101-A23vsUndone 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.

HOLTON AUTO GMT: NIVO 101-A23

Basecamp Stealth Automatic
Diameter
43mm
40mm
Lug-to-Lug
52mm
n/a
Thickness
14mm
n/a
Water Resistance
200m
highest
100m
Power Reserve
40h
n/a
MSRP
$883
$432
lowest
Movement
Seiko NH34
Seiko NH34
Case
4 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Elliot Brown HOLTON AUTO GMT: NIVO 101-A23 for its robust build, with one owner specifically noting the NIVO dial's attractive color-shifting quality. The internal bezel action is described as clicky and desirable. One owner notes the date window placement is a fair critique, but it avoids clutter by being positioned where the GMT hand only partially covers it. One owner misses the date window, understanding space constraints.
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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