Astor + Banks
Sea Ranger M2
- 40 mm case, 0.5 mm wider
- 45.5 mm lug-to-lug, 0.9 mm shorter
- Both use automatic movements
What changes
0.7 mm thinner case
Watch alternatives
Alternatives to the Seiko Prospex Alpinist Mechanical
Reference SPB123J1
Keep what you like. Explore what could be different. Compare 49 catalog matches by dimensions, movement and price.
- Case diameter
- 39.5 mm
- Lug-to-lug
- 46.4 mm
- Movement
- Automatic
- Catalog MSRP
- Not recorded
The starting pointStarting points
Choose the differences that matter to you.
Closest catalog matchSan Martin Watchdives x San Martin 38mm Upgraded ST2130 Chronometer Automatic Watch SN0113CW38 mm case, 1.5 mm narrowerSee the match Shorter lug-to-lugAstor + Banks Sea Ranger M245.5 mm lug-to-lug, 0.9 mm shorterSee the match
Calculated from catalog specifications and similarity signals. Prices are recorded MSRP in USD. Missing measurements stay unknown.
Your priorities
Narrow these matches without leaving the page.
49 matches
Microbrand picks· 12
Discover smaller makers with catalog similarities to this watch.
Boldr
Marine
- 40 mm case, 0.5 mm wider
- 46 mm lug-to-lug, 0.4 mm shorter
- Both use automatic movements
What changes
0.9 mm thinner case
Boldr
Odyssey 40mm
- 40 mm case, 0.5 mm wider
- 48 mm lug-to-lug, 1.6 mm longer
- Both use automatic movements
What changes
0.6 mm thinner case
Echo/Neutra
1956 3H
- 40 mm case, 0.5 mm wider
- 46 mm lug-to-lug, 0.4 mm shorter
- Both use automatic movements
What changes
1.3 mm thinner case
Boldr
Expedition II
- 41 mm case, 1.5 mm wider
- 48 mm lug-to-lug, 1.6 mm longer
- Both use automatic movements
What changes
0.8 mm thicker case
Baltic
Aquascaphe Classic
- 39 mm case, 0.5 mm narrower
- 47 mm lug-to-lug, 0.6 mm longer
- Both use automatic movements
What changes
0.2 mm thinner case
Baltic
Aquascaphe Bronze
- 39 mm case, 0.5 mm narrower
- 47 mm lug-to-lug, 0.6 mm longer
- Both use automatic movements
What changes
0.2 mm thinner case
Nezumi Studios
Aviator
- 40 mm case, 0.5 mm wider
- 47 mm lug-to-lug, 0.6 mm longer
- Both use automatic movements
What changes
0.1 mm thicker case
Borealis Watch Co.
Sea Storm MK2 GMT
- 41.5 mm case, 2 mm wider
- 48.5 mm lug-to-lug, 2.1 mm longer
- Both use automatic movements
What changes
1 mm thicker case
BOLDR Supply Co.
Odyssey Luminaire Aetherfire
- 40 mm case, 0.5 mm wider
- 48 mm lug-to-lug, 1.6 mm longer
- Both use automatic movements
What changes
0.6 mm thinner case
Lorier
Neptune SIV
- 39 mm case, 0.5 mm narrower
- Both use automatic movements
What changes
Lug-to-lug is not recorded for this match.
Phoibos
Argo
- 40.5 mm case, 1 mm wider
- 48 mm lug-to-lug, 1.6 mm longer
- Both use automatic movements
What changes
0.7 mm thinner case
Mainstream picks· 12
Established-brand matches. Compare the recorded dimensions, movement and price for each watch.
Christopher Ward
C60 Trident Pro 300
- 40 mm case, 0.5 mm wider
- 47.5 mm lug-to-lug, 1.1 mm longer
- Both use automatic movements
What changes
1.9 mm thinner case
Seiko
Prospex Alpinist
- 38 mm case, 1.5 mm narrower
- 46 mm lug-to-lug, 0.4 mm shorter
- Same Seiko 6R35 caliber
What changes
Compare models 0.3 mm thinner case
Christopher Ward
C60 Atoll 300
- 40 mm case, 0.5 mm wider
- 47.4 mm lug-to-lug, 1 mm longer
- Both use automatic movements
What changes
1.9 mm thinner case
Orient
AC0Q-40 Diver Watch
- 39.9 mm case, 0.4 mm wider
- 46.5 mm lug-to-lug, 0.1 mm longer
- Both use automatic movements
What changes
0.4 mm thinner case
Seiko
Prospex Land 1959 Alpinist
- 38 mm case, 1.5 mm narrower
- 46.2 mm lug-to-lug, 0.2 mm shorter
- Same Seiko 6R35 caliber
What changes
Compare models 0.3 mm thinner case
Bulova
Black Dial Stainless Steel Bracelet Vintage Sea Hunter 43B175
- 39 mm case, 0.5 mm narrower
- Both use automatic movements
What changes
Lug-to-lug is not recorded for this match.
Glycine
Combat Sub Sport
- 42 mm case, 2.5 mm wider
- Both use automatic movements
What changes
2.8 mm thinner case
Orient
Peanuts 75th Anniversary Limited Edition Diver
- 39.9 mm case, 0.4 mm wider
- 46.5 mm lug-to-lug, 0.1 mm longer
- Both use automatic movements
What changes
0.4 mm thinner case
Orient
Diver Design 40
- 39.9 mm case, 0.4 mm wider
- 46.5 mm lug-to-lug, 0.1 mm longer
- Both use automatic movements
What changes
0.4 mm thinner case
Timex
Expedition Pioneer Automatic 41mm Leather Strap Watch
- 41 mm case, 1.5 mm wider
- Both use automatic movements
What changes
Lug-to-lug is not recorded for this match.
Glycine
Unisex Combat Sub Bronze 39mm Automatic Watch GL0517
- 39 mm case, 0.5 mm narrower
- Both use automatic movements
What changes
2 mm thinner case
Cheaper alternatives· 12
Matches in a lower price band. A recorded MSRP difference is shown only when both prices are known.
Orient
Bambino Version 6
- 40.5 mm case, 1 mm wider
- 46.5 mm lug-to-lug, 0.1 mm longer
- Both use automatic movements
What changes
0.9 mm thinner case
Orient
Bambino Version 1
- 40 mm case, 0.5 mm wider
- 46.8 mm lug-to-lug, 0.4 mm longer
- Both use automatic movements
What changes
1.4 mm thinner case
Casio
Edifice EFK-100D
- 39 mm case, 0.5 mm narrower
- 43.5 mm lug-to-lug, 2.9 mm shorter
- Both use automatic movements
What changes
0.7 mm thinner case
Orient
Bambino Version 8
- 40.5 mm case, 1 mm wider
- 46.5 mm lug-to-lug, 0.1 mm longer
- Both use automatic movements
What changes
0.6 mm thinner case
Timex
Q Timex Continental Chronograph 36mm Stainless Steel Bracelet Watch
- 36 mm case, 3.5 mm narrower
- 43 mm lug-to-lug, 3.4 mm shorter
What changes
Quartz movement instead of automatic
Timex
Weekender New England Chronograph 40mm Leather Strap Watch - TW2Y85000
- 40 mm case, 0.5 mm wider
- 48.5 mm lug-to-lug, 2.1 mm longer
What changes
Quartz movement instead of automatic. 1.7 mm thinner case
Glycine
Airman Worldtimer GMT Dual Time
- 40 mm case, 0.5 mm wider
What changes
Quartz movement instead of automatic. 1.2 mm thinner case
Timex
Deepwater Meridian 200 38mm HNBR Rubber Strap Watch
- 38 mm case, 1.5 mm narrower
- 44 mm lug-to-lug, 2.4 mm shorter
What changes
Quartz movement instead of automatic
Casio
GMA-P2100
- 40.2 mm case, 0.7 mm wider
- 46 mm lug-to-lug, 0.4 mm shorter
What changes
Quartz movement instead of automatic. 2 mm thinner case
Citizen
Promaster Professional Diver
- 44 mm case, 4.5 mm wider
What changes
Solar movement instead of automatic
Pricier alternatives· 12
Matches in a higher price band. Check the specifications to decide whether the differences matter to you.
Glycine
Sea Kraken
- 39 mm case, 0.5 mm narrower
- Both use automatic movements
What changes
0.5 mm thinner case
Glycine
Combat Sub Sport
- 39 mm case, 0.5 mm narrower
- Both use automatic movements
What changes
2 mm thinner case
Christopher Ward
C60 Atoll 300
- 40 mm case, 0.5 mm wider
- 47.4 mm lug-to-lug, 1 mm longer
- Both use automatic movements
What changes
1.9 mm thinner case
Glycine
Combat Sub Sport GMT
- 42 mm case, 2.5 mm wider
- Both use automatic movements
What changes
2.3 mm thinner case
Yema
Skin Diver CMM.20
- Same 39.5 mm case diameter
- 47 mm lug-to-lug, 0.6 mm longer
- Both use automatic movements
What changes
1.7 mm thinner case
DOXA
SUB 250T GMT
- 40 mm case, 0.5 mm wider
- Both use automatic movements
What changes
Lug-to-lug is not recorded for this match.
Longines
SPIRIT ZULU TIME
- 39 mm case, 0.5 mm narrower
- 46.8 mm lug-to-lug, 0.4 mm longer
- Both use automatic movements
What changes
0.3 mm thicker case
Seiko
62MAS
- 40.5 mm case, 1 mm wider
- 47.6 mm lug-to-lug, 1.2 mm longer
- Same Seiko 6R35 caliber
What changes
Compare models Dimensions alone do not establish wrist fit.
Yema
Superman Dato CMM.10
- Same 39.5 mm case diameter
- Both use automatic movements
What changes
1.3 mm thinner case
Bulova
Oceanographer GMT
- 41 mm case, 1.5 mm wider
- Both use automatic movements
What changes
Lug-to-lug is not recorded for this match.
Christopher Ward
C60 Sapphire Edge
- 42 mm case, 2.5 mm wider
- 49.3 mm lug-to-lug, 2.9 mm longer
- Both use automatic movements
What changes
2.5 mm thinner case
Homages & lookalikes· 1
Watches that share this design language: confirmed homages, close tributes, and lookalikes, including the classics that inspired the look. Hidden when nothing in the catalog is related.
San Martin
Watchdives x San Martin 38mm Upgraded ST2130 Chronometer Automatic Watch SN0113CW
- 38 mm case, 1.5 mm narrower
- 45 mm lug-to-lug, 1.4 mm shorter
- Both use automatic movements
What changes
1.2 mm thinner case
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