Watch A
Orient TriStar
Round · 37mm
Visual presence
ModerateCase covers 65% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 7.1 mm per side.
Case: 37mmBand width est.: 18mm
Open this size in the full fit chart →Orient TriStar vs Seiko 5
Side-by-side comparison of specifications and features
Key Differences
Best Value
Seiko 5 (Ref. SNK809 · Unisex)
Starting from $75
Best Water Resistance
Orient TriStar (Ref. RA-AB0E)
50m (2x more)
See Both Watches on Your Wrist
Compare visual case presence and physical footprint on one shared wrist. Measure your top-down wrist width for a stronger result; lug-to-lug is used when the catalog has it.
Medium (6.7″)
Estimated top width: 56.7 mm
Preliminary range: 54.7–61.8 mm.
Watch B
Seiko 5
Round · 37mm · 42.9mm lug-to-lug
Visual presence
ModerateCase covers 65% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 6.9 mm per side.
Case: 37mmLug-to-lug: 42.9mmLug width: 18mmThickness: 11mm
Open this size in the full fit chart →Proportional guide only: visual presence and physical footprint do not predict comfort. Weight, thickness, caseback shape, rigid lugs, strap stiffness, wrist-bone prominence, wearing tension, bezel design, and case curvature change how a watch actually wears.
Price Comparison
Orient TriStar
MSRP
$170
New
$240
Used
$100
Seiko 5
MSRP
$75
Used
$100
MSRP New (Amazon) Used (eBay)
Side-by-Side Specs
Start with the specifications that meaningfully differ. Expand the complete table for reference details and missing-data context.
| Specification | Orient TriStar | Seiko 5 |
|---|---|---|
| Pricing | ||
| MSRP5 is $95 less at MSRP | $170 | $75 |
| Used Price (High) | $480 | $3,554 |
| 30-Day Trend | ↑ +38.2% | 0.0% |
| Used Price Range | $100 - $480 | $100 - $3,554 |
| Identity | ||
| Style | Casual, Sports | Field, Casual |
| Dimensions | ||
| Thickness | N/A | 11mm |
| Case | ||
| Crystal | Mineral Crystal | Hardlex |
| Water ResistanceTriStar adds 20m water resistance | 50m (swimming) | 30m (splash resistant) |
| Dial | ||
| Dial Color | Blue | Black |
6 specifications both watches share
Used Price (Low)$100
Diameter37mm
MovementAutomatic
Case MaterialStainless Steel
BezelFixed
Luminous✓ Included
4 fields are excluded from the differences view because one watch lacks comparable data. Use “All specs” to inspect those gaps.
Which Should You Buy?
If you are deciding between Orient TriStar and Seiko 5, the real decision is usually about wrist presence versus easier fit, casual character versus field versatility, entry price versus premium finishing or specs. Start with fit first — case width and lug-to-lug usually matter more than secondary features if wrist comfort is a concern.
Bottom line
Water resistance is a meaningful separator here — the higher-rated option gives more flexibility for swimming or rougher daily use. Choose Orient TriStar if you are specifically shopping for a casual style watch; choose Seiko 5 if you are specifically shopping for a field style watch.
Choose Orient TriStar when
Orient TriStar is a better fit for mechanical-watch enthusiasts, casual styling.
Choose Seiko 5 when
Seiko 5 is a better fit for mechanical-watch enthusiasts, field styling.
Key Differences
Movement and upkeep
Orient TriStar: automatic movement
Seiko 5: automatic movement
Both use the same movement type, so maintenance differences are limited and fit or feature details should decide the purchase.
Size and wearability
Orient TriStar: 37mm
Seiko 5: 37mm · L2L 42.9mm · 60g
Fit is a real separator here — compare case width and lug-to-lug before deciding, especially if wrist comfort matters more than headline features.
Water resistance
Orient TriStar: 50m
Seiko 5: 30m
Water resistance is a meaningful separator here — the higher-rated option gives more flexibility for swimming or rougher daily use.
Price and value
Orient TriStar: $170
Seiko 5: $75
There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.
Style and use case
Orient TriStar: casual
Seiko 5: field
Orient TriStar leans more casual, while Seiko 5 pulls toward field use case — pick the one that matches how you will actually wear it.
Crystal and materials
Orient TriStar: mineral crystal · steel
Seiko 5: Hardlex crystal · steel
Crystal choice can change long-term wear expectations — one may prioritize scratch resistance while the other keeps cost or vintage feel in check.
Choose Orient TriStar If...
- You are specifically shopping for a casual style watch.
- You are comfortable paying more for a stronger feature set.
Choose Seiko 5 If...
- You are specifically shopping for a field style watch.
- You want the lower current entry price.
Price and Value Notes
Seiko 5 is often the value play at current pricing, while Orient TriStar makes more sense if you will use its extra features regularly.
There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.
Where to Check Deals
Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.
Check current deals on Amazon and eBay
Prices change often, so compare the latest listings and condition options before you buy.
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Orient TriStar
Check Price on AmazonOpens in new tab · Price may vary
Check Price on eBayFrom $176 · New & used listings
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Seiko 5
Check Price on AmazonOpens in new tab · Price may vary
Check Price on eBayFrom $200 · New & used listings
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Comparison FAQ
Which one is better for smaller wrists?
Neither is clearly smaller: case width is 37mm vs 37mm. Pick on strap and looks instead — the size difference is not what will decide this for you.
Which is better for swimming or rough daily wear?
Orient TriStar — it is rated 50m versus 30m. Both are in the same broad bracket, so treat this as a tiebreaker rather than a deciding factor.
Is the more expensive one worth it?
Seiko 5 is the value pick at roughly $95 less. Pay more only if a specific difference above matters to you — otherwise the cheaper one is the smarter buy. Confirm live listings, since marketplace pricing moves.
Evidence & Method
How we compared these watches
No WatchCompared hands-on test claimed
- • Catalog specifications are normalized into the same units before differences are calculated.
- • The verdict uses only populated fields and the source-backed observations listed here.
- • Missing evidence reduces the depth of the conclusion instead of being filled with assumptions.
This page currently relies on normalized catalog fields and calculated differences. No external reviewer observation is used in its verdict.
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Orient TriStar
Check Price on AmazonOpens in new tab · Price may vary
Check Price on eBayFrom $176 · New & used listings
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Seiko 5
Check Price on AmazonOpens in new tab · Price may vary
Check Price on eBayFrom $200 · New & used listings
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
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