Side by side

Astor + Banks Sea Ranger M2vsGrand Seiko SLGA001

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

Sea Ranger M2
Astor + BanksSea Ranger M2
MSRP $1,149
SLGA001
Grand SeikoSLGA001
MSRP $11,100

At a glance

11 of 29 specs differ
Diameter
Sea Ranger M240mm
SLGA00146.9mm
Power Reserve
Sea Ranger M240h
SLGA001120h
Water Resistance
Sea Ranger M2300m
SLGA001100m
MSRP
Sea Ranger M2$1,149
SLGA001$11,100

Full specifications

Case

6 specs
Diameter
40mm
46.9mm
Thickness
12.5mm
16mm
Lug-to-Lug
45.5mm
50.8mm
Lug Width
20mm
23mm
Material
316L Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Tobacco
Black

Movement

3 specs
Caliber
La Joux-Perret G100
9RA5
Type
Automatic
Spring Drive
Power Reserve
40h
120h

Pricing

1 specs
MSRP
$1,149
$11,100

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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.

Astor + Banks Sea Ranger M2

The Astor + Banks Sea Ranger M2 is widely praised for its balanced design, excellent legibility, and strong GADA (go-anywhere, do-anything) capabilities, featuring 300m water resistance and a scratch-resistant coating. Reviewers note its comfortable 40mm case size and good lume, though one source describes it as good but not great. The movement is a Sellita SW200 adjusted by the brand, with accuracy reported around ±8 seconds per day. The pre-order price is $650, with a standard price of $850. On balance, reviewers find the Astor + Banks Sea Ranger M2 to be a compelling option due to its functional design and robust specifications.

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.

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