Side by side
Serket Watch Co TachymetrevsSeiko Astron GPS Solar 2025 Limited Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Tachymetre42.5mm
Astron GPS Solar 2025 Limited Edition43.4mm
Power Reserve
Tachymetre—
Astron GPS Solar 2025 Limited Edition40h
Water Resistance
Tachymetre50m
Astron GPS Solar 2025 Limited Edition100m
MSRP
Tachymetre$299
Astron GPS Solar 2025 Limited Edition$2,900
Full specifications
Case
7 specsCategory
—
Chronograph
Diameter
42.5mm
43.4mm
Thickness
12mm
13.4mm
Lug-to-Lug
53mm
49.5mm
Lug Width
22mm
14mm
Material
Stainless Steel
Titanium
Water Resistance
50m
100m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
Teal Blue
Black
Lume
C3 SuperLuminova
LumiBrite on hands and index(es)
Movement
4 specsCaliber
Seiko VK64
5X83
Type
Mecaquartz
Quartz
Power Reserve
—
40h
Jewels
25
14
Pricing
1 specsMSRP
$299
$2,900
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