Side-by-side comparison of specifications and features
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 A
Visual presence
BoldCase covers 71% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 6.0 mm per side.
Watch B
Visual presence
BoldCase covers 71% of your modeled wrist width.
Physical footprint
Clear spaceEstimated clearance: 4.8 mm per side.
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. Non-round silhouettes use a verified family shape and catalog dimensions where available; missing case height or width is estimated from a conservative family aspect ratio.
Start with the specifications that meaningfully differ. Expand the complete table for reference details and missing-data context.
| Specification | Tissot PRX Powermatic 80 | Tissot Seastar 1000 |
|---|---|---|
| Pricing | ||
| MSRPSeastar 1000 is $220 less at MSRP | $695 | $475 |
| New PriceSeastar 1000 is $424.5 less based on the current snapshot | $829 | $405 |
| Used Price (Low)Seastar 1000 is $176.1 less at the low end | $562 | $386 |
| Used Price (High) | $1,245 | $590 |
| 30-Day Trend | ↓ -1.9% | ↑ +4.7% |
| Used Price Range | $562 - $1,245 | $386 - $590 |
| Identity | ||
| Style | Sports, Dress | Diver, Sports |
| Dimensions | ||
| ThicknessPRX Powermatic 80 is 1.3mm thinner | 10.9mm | 12.2mm |
| WeightSeastar 1000 is 4g lighter | 138g | 134g |
| Lug to Lug | 44.6mm | 47mm |
| Movement | ||
| Movement | Automatic | Quartz |
| Case | ||
| Water ResistanceSeastar 1000 adds 200m water resistance | 100m (recreational diving) | 300m (diving) |
| Bezel | Fixed | Unidirectional rotating |
1 field is excluded from the differences view because one watch lacks comparable data. Use “All specs” to inspect those gaps.
Tissot PRX Powermatic 80 and Tissot Seastar 1000 can look close on a spec sheet, yet the tradeoffs that matter most are usually mechanical feel versus low-maintenance convenience, water-ready utility versus dressier everyday wear, sports character versus diver versatility. They both touch the sports use case, so smaller spec differences can matter more than brand preference.
Bottom line
Water resistance is a meaningful separator here — the higher-rated option gives more flexibility for swimming or rougher daily use. Choose Tissot PRX Powermatic 80 if you prefer a mechanical watch experience and do not mind more upkeep; choose Tissot Seastar 1000 if you want a lower-maintenance daily watch.
Choose Tissot PRX Powermatic 80 when
Tissot PRX Powermatic 80 is a better fit for mechanical-watch enthusiasts, sports styling.
Choose Tissot Seastar 1000 when
Tissot Seastar 1000 is a better fit for low-maintenance daily wear, diver styling.
Movement and upkeep
Tissot PRX Powermatic 80: automatic movement
Tissot Seastar 1000: quartz movement
Tissot PRX Powermatic 80 uses a automatic movement, while Tissot Seastar 1000 uses a quartz movement — that changes day-to-day ownership, upkeep, and the overall feel on the wrist.
Size and wearability
Tissot PRX Powermatic 80: 40mm · L2L 44.6mm · 138g
Tissot Seastar 1000: 40mm · L2L 47mm · 134g
Their size profiles are relatively close, so fit comes down to shape, weight, and how each watch sits on your wrist.
Water resistance
Tissot PRX Powermatic 80: 100m
Tissot Seastar 1000: 300m
Water resistance is a meaningful separator here — the higher-rated option gives more flexibility for swimming or rougher daily use.
Price and value
Tissot PRX Powermatic 80: $695
Tissot Seastar 1000: $405
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
Tissot PRX Powermatic 80: sports
Tissot Seastar 1000: diver
Tissot PRX Powermatic 80 leans more sports, while Tissot Seastar 1000 pulls toward diver use case — pick the one that matches how you will actually wear it.
Crystal and materials
Tissot PRX Powermatic 80: sapphire crystal · steel
Tissot Seastar 1000: sapphire crystal · steel
Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.
Tissot Seastar 1000 is often the value play at current pricing, while Tissot PRX Powermatic 80 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.
Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.
Prices change often, so compare the latest listings and condition options before you buy.
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Tissot PRX Powermatic 80
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Tissot Seastar 1000
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Quartz and solar models are usually easier for grab-and-go use, while automatic and manual watches appeal more to buyers who enjoy the mechanical side of watch ownership.
Tissot PRX Powermatic 80 — it is 44.6mm lug-to-lug versus 47mm, and lug-to-lug is what decides whether a watch overhangs a smaller wrist.
Tissot Seastar 1000 — it is rated 300m versus 100m. Both are in the same broad bracket, so treat this as a tiebreaker rather than a deciding factor.
Tissot Seastar 1000 is the value pick at roughly $291 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
This page currently relies on normalized catalog fields and calculated differences. No external reviewer observation is used in its verdict.
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