Side by side

Astor + Banks Sea Ranger M2vsGrand Seiko SBGN027

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
SBGN027
Grand SeikoSBGN027
MSRP $3,700

At a glance

12 of 29 specs differ
Diameter
Sea Ranger M240mm
SBGN02739mm
Power Reserve
Sea Ranger M240h
SBGN02740h
Water Resistance
Sea Ranger M2300m
SBGN027200m
MSRP
Sea Ranger M2$1,149
SBGN027$3,700

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
39mm
Thickness
12.5mm
12.3mm
Lug-to-Lug
45.5mm
45.9mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Tobacco
Black

Movement

2 specs
Caliber
La Joux-Perret G100
9F86
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$1,149
$3,700

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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 SBGN027

Owners widely praise the Grand Seiko SBGN027 for its exceptional Zaratsu polishing, compact 39mm size, and versatile monochrome aesthetic, noting its thin profile and suitability as a grab-and-go watch. The 9F quartz movement delivers highly accurate timekeeping, with one owner reporting +/- 10 seconds per year. However, some find the lume limited, the bracelet lacks micro-adjustments, and the GMT hand can be easily mistaken for the minute hand. One owner reported a black index on the bezel disappearing after a couple of months. On balance, owners rate the Grand Seiko SBGN027 highly for its premium finishing and accurate HAQ GMT movement in a wearable size.

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