Elliot Brown Holton Auto GMT: Nivo 101-A23vsSeiko Prospex Land Mechanical GMT

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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.

Elliot Brown Holton Auto GMT: Nivo 101-A23 at true scale

Holton Auto GMT: Nivo 101-A23

Seiko Prospex Land Mechanical GMT at true scale

Prospex Land Mechanical GMT

Diameter

43mm

39.5mm

Lug-to-Lug

52mm

46.4mm

lowest

Thickness

14mm

13.6mm

lowest

Water Resistance

200m

200m

Power Reserve

40h

72h

highest

MSRP

$883

lowest

$1,150

Movement

Seiko NH34

Seiko 6R54

Case

4 specs
Diameter
43mm
39.5mm
Thickness
14mm
13.6mm
Lug-to-Lug
52mm
46.4mm
Lug Width
n/a
20mm

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Seiko NH34
Seiko 6R54
Power Reserve
40h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$883
$1,150
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Reviews

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

Elliot Brown Holton Auto GMT: Nivo 101-A23

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.

Seiko Prospex Land Mechanical GMT

Owners widely praise the Seiko Prospex Land Mechanical GMT for its faithful reconstruction of the 6117 design, its attractive gray dial, and comfortable bracelet. Reviewers highlight its handsome everyday sports watch appeal and classic Seiko diver aesthetics. However, community members are split on the value proposition, with many deeming it overpriced at $970, suggesting a better price point around $700 or on sale. Some owners criticize the 6R54 movement's accuracy, reporting deviations of up to +/- 20 seconds per day, and prefer a local jumping GMT function over the caller style. On balance, owners and reviewers appreciate the Seiko Prospex Land Mechanical GMT's design and wearability, but opinions are divided on its price and movement performance relative to alternatives.

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