Side by side

Grand Seiko SLGA001vsZelos Thresher 44

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

SLGA001
Grand SeikoSLGA001
MSRP $11,100
Thresher 44
ZelosThresher 44
MSRP $549

At a glance

12 of 29 specs differ
Diameter
SLGA00146.9mm
Thresher 4444mm
Power Reserve
SLGA001120h
Thresher 4440h
Water Resistance
SLGA001100m
Thresher 44500m
MSRP
SLGA001$11,100
Thresher 44$549

Full specifications

Case

6 specs
Diameter
46.9mm
44mm
Thickness
16mm
12.8mm
Lug-to-Lug
50.8mm
44mm
Lug Width
23mm
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
100m
500m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Grey

Movement

3 specs
Caliber
9RA5
Miyota 9015
Type
Spring Drive
Automatic
Power Reserve
120h
40h

Pricing

1 specs
MSRP
$11,100
$549

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What people say

Owners + reviewers, side by side

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

Grand Seiko SLGA001

The Grand Seiko SLGA001 is praised for its impressive technical achievements, including a new, slimmer Spring Drive movement with a five-day power reserve and exceptional accuracy of ±0.5 seconds per day. Reviewers note the 47mm titanium case, despite its substantial dimensions, wears more comfortably due to its titanium construction, short lugs, and virtually scratch-proof finish. The watch features a 600-meter water resistance and is limited to 700 pieces, priced at $11,100. On balance, reviewers consider the Grand Seiko SLGA001 a highly capable dive watch, with its technological advancements in the Spring Drive movement being a key highlight.

From video reviewers

The watch's Spring Drive movement, specifically the Cal.9RA5, offers a 120-hour power reserve. A notable trade-off is the watch's relatively large size, with a case diameter of 46.9mm and thickness of 16.0mm, which may not suit those with smaller wrists. The high price point may be a trade-off for some buyers.

Zelos Thresher 44

Owners widely praise the Zelos Thresher 44, with one owner noting its finish has proven remarkably scratch-resistant. However, one owner found the finishing on their hammered grey variant not as well done as expected. The Zelos Thresher 44 with an agate dial sold out in 90 seconds, with one owner receiving theirs and noting the bracelet was fully wrapped. Overall, owners rate the Zelos Thresher 44 highly for its desirability and scratch-resistant finish.

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