Side by side
Smith & Bradley SANS-13 SilverbackvsSeiko 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
11 of 29 specs differDiameter
SANS-13 Silverback42mm
Astron GPS Solar 2026 Limited Edition41.2mm
Power Reserve
SANS-13 Silverback40h
Astron GPS Solar 2026 Limited Edition40h
Water Resistance
SANS-13 Silverback300m
Astron GPS Solar 2026 Limited Edition100m
MSRP
SANS-13 Silverback$295
Astron GPS Solar 2026 Limited Edition$2,400
Full specifications
Case
6 specsCategory
—
GMT
Diameter
42mm
41.2mm
Lug-to-Lug
46mm
48.6mm
Lug Width
22mm
14mm
Material
Stainless Steel
Titanium
Water Resistance
300m
100m
Crystal & Dial
2 specsAR Coating
Yes
Super-clear coating
Lume
Superluminova
LumiBrite on hands and index(es)
Movement
2 specsCaliber
Ronda
3X62
Jewels
25
10
Pricing
1 specsMSRP
$295
$2,400
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