Side by side
Elliot Brown HOLTON AUTO GMT: NIVO 101-A23vsSeiko Astron GPS Solar 2026 Limited Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
HOLTON AUTO GMT: NIVO 101-A2343mm
Astron GPS Solar 2026 Limited Edition41.2mm
Power Reserve
HOLTON AUTO GMT: NIVO 101-A2340h
Astron GPS Solar 2026 Limited Edition—
Water Resistance
HOLTON AUTO GMT: NIVO 101-A23200m
Astron GPS Solar 2026 Limited Edition100m
MSRP
HOLTON AUTO GMT: NIVO 101-A23$890
Astron GPS Solar 2026 Limited Edition$2,400
Full specifications
Case
7 specsCategory
—
GMT
Diameter
43mm
41.2mm
Thickness
14mm
12mm
Lug-to-Lug
0mm
48.6mm
Lug Width
0mm
14mm
Material
Stainless Steel
Titanium
Water Resistance
200m
100m
Crystal & Dial
3 specsAR Coating
—
Super-clear coating
Dial Color
—
—
Lume
None
LumiBrite on hands and index(es)
Movement
4 specsCaliber
Seiko NH34
3X62
Type
Automatic
Quartz
Power Reserve
40h
0h
Jewels
0
10
Pricing
1 specsMSRP
$890
$2,400
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