Timefactors
Armstrong Siddeley
- Same 42 mm case diameter
- Same ETA/Unitas 6498 caliber
What changes
$1,315 recorded MSRP, $335 higher
Watch alternatives
Alternatives to the Smiths Armstrong Siddeley
Keep what you like. Explore what could be different. Compare 48 catalog matches by dimensions, movement and price.
- Case diameter
- 42 mm
- Lug-to-lug
- 52 mm
- Movement
- Manual
- Catalog MSRP
- $980
The starting pointStarting points
Choose the differences that matter to you.
Closest catalog matchTimefactors Armstrong SiddeleySame 42 mm case diameterSee the match Lower recorded MSRPTimefactors Richmond Spencer$651 recorded MSRP, $329 lowerSee the match Shorter lug-to-lugZelos Skyraider 2 'Spitfire' Limited Edition48.5 mm lug-to-lug, 3.5 mm shorterSee the match
Calculated from catalog specifications and similarity signals. Prices are recorded MSRP in USD, not current retail offers. Missing measurements stay unknown.
Your priorities
Narrow these matches without leaving the page.
48 matches
Microbrand picks· 12
Discover smaller makers with catalog similarities to this watch.
Towson Watch Co
Classic #3
- Same 42 mm case diameter
- Same ETA/Unitas 6498 caliber
What changes
1 mm thicker case. $13,000 recorded MSRP, $12,020 higher
Zelos
Skyraider 2 'Spitfire' Limited Edition
- Same 42 mm case diameter
- 48.5 mm lug-to-lug, 3.5 mm shorter
- Same ETA/Unitas 6498 caliber
What changes
1.5 mm thinner case. $1,599 recorded MSRP, $619 higher
Timefactors
Richmond Spencer
- $651 recorded MSRP, $329 lower
- Same 42 mm case diameter
- Same ETA/Unitas 6498 caliber
What changes
Dimensions alone do not establish wrist fit.
Towson Watch Co
CLASSIC
- Same 42 mm case diameter
- Same ETA/Unitas 6498 caliber
What changes
1.2 mm thinner case. $8,200 recorded MSRP, $7,220 higher
Zelos
Skyraider 2 Ti-Damascus Skeleton Limited Edition
- Same 42 mm case diameter
- 48.5 mm lug-to-lug, 3.5 mm shorter
- Same ETA/Unitas 6498 caliber
What changes
1.5 mm thinner case. $2,499 recorded MSRP, $1,519 higher
Dekla
Deckwatch 40mm roman
- $900 recorded MSRP, $80 lower
- 40 mm case, 2 mm narrower
- Same ETA/Unitas 6498 caliber
What changes
Lug-to-lug is not recorded for this match.
Dekla
Military Vintage Cali Ruthenium Sub-Dial
- $916 recorded MSRP, $64 lower
- Same 42 mm case diameter
- Same ETA/Unitas 6498 caliber
What changes
Lug-to-lug is not recorded for this match.
Timefactors
Italian
- $684 recorded MSRP, $296 lower
- 44 mm case, 2 mm wider
- Same ETA/Unitas 6498 caliber
What changes
0.5 mm thicker case
Archimede Watches
Deckwatch
- $960 recorded MSRP, $20 lower
- Same 42 mm case diameter
- Same ETA/Unitas 6498 caliber
What changes
Lug-to-lug is not recorded for this match.
Dekla
Deckwatch 40mm arabic Silver / Ruthenium Dial
- $900 recorded MSRP, $80 lower
- 40 mm case, 2 mm narrower
- Same ETA/Unitas 6498 caliber
What changes
Lug-to-lug is not recorded for this match.
Laco
Edition 95
- 42.5 mm case, 0.5 mm wider
- Same ETA/Unitas 6498 caliber
What changes
1.3 mm thinner case. $1,560 recorded MSRP, $580 higher
Mainstream picks· 12
Established-brand matches. Compare the recorded dimensions, movement and price for each watch.
Stowa
Marine Original Bronze Vintage
- 41 mm case, 1 mm narrower
- 50.2 mm lug-to-lug, 1.8 mm shorter
- Same ETA/Unitas 6498 caliber
What changes
MSRP is not recorded for this match.
Stowa
Marine Original arabic
- 41 mm case, 1 mm narrower
- Same ETA/Unitas 6498 caliber
What changes
Lug-to-lug is not recorded for this match.
Stowa
Flieger 6498
- 41 mm case, 1 mm narrower
- 50.2 mm lug-to-lug, 1.8 mm shorter
- Same ETA/Unitas 6498 caliber
What changes
0.8 mm thicker case
Hamilton
Jazzmaster Power Reserve Auto
- Same 42 mm case diameter
What changes
Automatic movement instead of manual. 0.6 mm thicker case
Christopher Ward
C63 Sealander Rocks
- 40 mm case, 2 mm narrower
- 42.9 mm lug-to-lug, 9.1 mm shorter
What changes
Compare models Automatic movement instead of manual. 0.9 mm thinner case
Hamilton
Khaki Field Mechanical Power Reserve
- 40 mm case, 2 mm narrower
- 48 mm lug-to-lug, 4 mm shorter
- Both use manual movements
What changes
$1,025 recorded MSRP, $45 higher
Hamilton
American Classic Spirit of Liberty Auto
- Same 42 mm case diameter
What changes
Automatic movement instead of manual. 0.6 mm thinner case
Seiko
Presage Classic Series “Craftsmanship” Arita Porcelain Dial
- 40.6 mm case, 1.4 mm narrower
- 49.1 mm lug-to-lug, 2.9 mm shorter
What changes
Automatic movement instead of manual. 0.5 mm thicker case
Seiko
Presage Classic Series “Craftsmanship” Enamel Dial
- 40.2 mm case, 1.8 mm narrower
- 48 mm lug-to-lug, 4 mm shorter
What changes
Automatic movement instead of manual. $1,400 recorded MSRP, $420 higher
Autodromo
monoposto automatic
- $895 recorded MSRP, $85 lower
- 43 mm case, 1 mm wider
- 46 mm lug-to-lug, 6 mm shorter
What changes
Automatic movement instead of manual. 1 mm thinner case
Otsuka Lotec
6号
- 42.6 mm case, 0.6 mm wider
What changes
Automatic movement instead of manual. 0.2 mm thinner case
Seiko
Presage Classic Series
- $950 recorded MSRP, $30 lower
- 40.2 mm case, 1.8 mm narrower
- 46 mm lug-to-lug, 6 mm shorter
What changes
Automatic movement instead of manual. 1 mm thicker case
Cheaper alternatives· 12
Matches in a lower price band. A recorded MSRP difference is shown only when both prices are known.
Orient
Symphony IV
- $285 recorded MSRP, $695 lower
- 41.6 mm case, 0.4 mm narrower
- 48.3 mm lug-to-lug, 3.7 mm shorter
What changes
Automatic movement instead of manual. 0.3 mm thinner case
Orient
RA-AK03 Version 5 Classic Watch
- $420 recorded MSRP, $560 lower
- 41.5 mm case, 0.5 mm narrower
- 48 mm lug-to-lug, 4 mm shorter
What changes
Automatic movement instead of manual. 1 mm thicker case
Glycine
Men's Combat Field 42mm Automatic Watch GL0564
- $700 recorded MSRP, $280 lower
- Same 42 mm case diameter
What changes
Automatic movement instead of manual. 0.4 mm thinner case
Orient
Bambino Small Seconds
- $290 recorded MSRP, $690 lower
- 40.5 mm case, 1.5 mm narrower
- 46 mm lug-to-lug, 6 mm shorter
What changes
Automatic movement instead of manual
Mondaine
Doppio
- $365 recorded MSRP, $615 lower
- 41 mm case, 1 mm narrower
What changes
Automatic movement instead of manual. 2.9 mm thinner case
Glycine
Men's Combat Field 42mm Automatic Watch GL0569
- $675 recorded MSRP, $305 lower
- Same 42 mm case diameter
What changes
Automatic movement instead of manual. 0.4 mm thinner case
Glycine
Men's Combat Field 42mm Automatic Watch GL0571
- $675 recorded MSRP, $305 lower
- Same 42 mm case diameter
What changes
Automatic movement instead of manual. 0.4 mm thinner case
Timex
Pan Am x Timex Waterbury Automatic Ace 41mm
- $359 recorded MSRP, $621 lower
- 41 mm case, 1 mm narrower
What changes
Automatic movement instead of manual. 1 mm thicker case
Citizen
Tsuyosa Automatic
- $356 recorded MSRP, $624 lower
- 40 mm case, 2 mm narrower
What changes
Compare models Automatic movement instead of manual
Seiko
Seiko Selection SARV001
- $181 recorded MSRP, $799 lower
- Same 42 mm case diameter
- 51.5 mm lug-to-lug, 0.5 mm shorter
What changes
Automatic movement instead of manual. 0.4 mm thinner case
Seiko
Presage Cocktail Time
- $475 recorded MSRP, $505 lower
- 40.5 mm case, 1.5 mm narrower
What changes
Automatic movement instead of manual. 0.2 mm thinner case
Pricier alternatives· 12
Matches in a higher price band. Check the specifications to decide whether the differences matter to you.
Omega
Seamaster Aqua Terra 150M Co Axial Master Chronometer
- 41 mm case, 1 mm narrower
- 47.9 mm lug-to-lug, 4.1 mm shorter
What changes
Compare models Automatic movement instead of manual. 1.2 mm thicker case
Omega
Seamaster Aqua Terra 150M Co Axial Master Chronometer
- 41 mm case, 1 mm narrower
- 47.9 mm lug-to-lug, 4.1 mm shorter
What changes
Compare models Automatic movement instead of manual. 1.2 mm thicker case
RGM Watches
Model 150
- Same 42 mm case diameter
- Same ETA/Unitas 6498 caliber
What changes
1.5 mm thinner case. $3,450 recorded MSRP, $2,470 higher
NOMOS Glashütte
Club automatic date Atlantic
- 41.5 mm case, 0.5 mm narrower
- 53 mm lug-to-lug, 1 mm longer
What changes
Automatic movement instead of manual. 2.2 mm thinner case
Frederique Constant
Yacht Timer Regatta Countdown
- Same 42 mm case diameter
What changes
Compare models Automatic movement instead of manual. $3,195 recorded MSRP, $2,215 higher
Norqain
Independence JP Black Mother Of Pearl 42mm
- Same 42 mm case diameter
- 48.8 mm lug-to-lug, 3.3 mm shorter
What changes
Compare models Automatic movement instead of manual. 0.2 mm thinner case
Omega
Seamaster Railmaster Co Axial Master Chronometer Small Seconds 38mm
- 38 mm case, 4 mm narrower
- 44.9 mm lug-to-lug, 7.1 mm shorter
What changes
Compare models Automatic movement instead of manual. 0.4 mm thicker case
RGM Watches
Model 222-RR
- 41 mm case, 1 mm narrower
- Both use manual movements
What changes
$8,950 recorded MSRP, $7,970 higher
Grand Seiko
SBGA293
- 40.2 mm case, 1.8 mm narrower
- 48.5 mm lug-to-lug, 3.5 mm shorter
What changes
Spring Drive movement instead of manual. 0.8 mm thicker case
Massena LAB
Archetype 0.0
- Same 42 mm case diameter
- Both use manual movements
What changes
1.5 mm thicker case. $4,250 recorded MSRP, $3,270 higher
Massena LAB
Archetype 1.0
- Same 42 mm case diameter
- Both use manual movements
What changes
2 mm thicker case. $4,250 recorded MSRP, $3,270 higher
Grand Seiko
SBGK007
- 39 mm case, 3 mm narrower
- 44 mm lug-to-lug, 8 mm shorter
- Both use manual movements
What changes
0.4 mm thinner case. $7,300 recorded MSRP, $6,320 higher
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