Side by side

Astor + Banks Sea Ranger M2vsSeiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition

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

At a glance

14 of 29 specs differ
Diameter
Sea Ranger M240mm
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition42mm
Power Reserve
Sea Ranger M240h
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition40h
Water Resistance
Sea Ranger M2300m
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition100m
MSRP
Sea Ranger M2$1,149
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition$2,400

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
40mm
42mm
Thickness
12.5mm
12.9mm
Lug-to-Lug
45.5mm
49.6mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
Tobacco
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
La Joux-Perret G100
5X83
Type
Automatic
Quartz
Jewels
25
14

Pricing

1 specs
MSRP
$1,149
$2,400

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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.

Seiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition

The Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition is praised for its retro design, balanced 42mm case, good finishing, and sapphire crystal. It is powered by the calibre 8R48, featuring a column wheel and vertical clutch, and offers 100m water resistance. Some find its 45-hour power reserve short compared to modern alternatives, and the date window placement is a point of discussion. The solar-powered variant is noted for its compact proportions and character, though some desire thinner cases and improved bracelet micro-adjustment. Overall, owners and reviewers appreciate the SPEEDTIMER's vintage-inspired aesthetics and solid build, with critiques focusing on power reserve and minor functional details.

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