Which is cheaper, the Helgray GMT (Refurbished) or the Seiko Astron GPS Solar 2025 Limited Edition?

At MSRP the Helgray GMT (Refurbished) is the cheaper of the two at $150, against $2,600 for the Seiko Astron GPS Solar 2025 Limited Edition — a $2,450 gap before any retailer discounting.

Which has better water resistance, the Helgray GMT (Refurbished) or the Seiko Astron GPS Solar 2025 Limited Edition?

The Helgray GMT (Refurbished) is rated to 50m versus 10m for the Seiko Astron GPS Solar 2025 Limited Edition.

What movement does the Helgray GMT (Refurbished) run compared to the Seiko Astron GPS Solar 2025 Limited Edition?

Both watches run quartz movements — the Helgray GMT (Refurbished) uses the Swiss-Made Ronda 515.24H Strap and the Seiko Astron GPS Solar 2025 Limited Edition uses the 3X62.

Side by side

Helgray GMT (Refurbished)vsSeiko Astron GPS Solar 2025 Limited Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Helgray GMT (Refurbished)

gmt-1

MSRP $150

Seiko Astron GPS Solar 2025 Limited Edition

ssj029j1

MSRP $2,600

At a glance

9 of 29 specs differ

Diameter

GMT (Refurbished)42mm

Astron GPS Solar 2025 Limited Edition42mm

Power Reserve

GMT (Refurbished)40h

Astron GPS Solar 2025 Limited Edition40h

Water Resistance

GMT (Refurbished)50m

Astron GPS Solar 2025 Limited Edition100m

MSRP

GMT (Refurbished)$150

Astron GPS Solar 2025 Limited Edition$2,600

Full specifications

Case

4 specs

Lug-to-Lug

46mm

47.9mm

Lug Width

20mm

14mm

Material

Stainless Steel

Titanium

Water Resistance

50m

100m

Crystal & Dial

2 specs

AR Coating

Inner

Super-clear coating

Lume

None

LumiBrite on hands and index(es)

Movement

2 specs

Caliber

Swiss-Made Ronda 515.24H Strap

3X62

Jewels

Pricing

1 specs

MSRP

$150

$2,600

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