Side by side · Tissot PRX 35mm vs 40mm

PRX Powermatic 80 35mm Green
or PRX Powermatic 80 Ice Blue?

Same Powermatic 80, sapphire, 100 m rating and 10.93 mm thickness; the only real difference is width. Choose the 35 mm if your wrist is under about 6.75 inches or you like vintage proportions. Choose the 40 mm for more presence on an average or larger wrist.

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Shop at Watches of America · $683.55 with code

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Choose the PRX Powermatic 80 35mm Green for
  • Costs $79.86 less at its listed price
  • Smaller case for slimmer wrists: 35 mm vs 40 mm
  • Watch Ritual code SEBASTIANBASSOL supplied for 10% off
Read the full review
Choose the PRX Powermatic 80 Ice Blue for
  • More wrist presence at 40 mm
  • Watch Ritual code SEBASTIANBASSOL tested: $683.55 before shipping
Read the full review

The specs, side by side.

PRX Powermatic 80 35mm GreenPRX Powermatic 80 Ice Blue
Listed price$679.64 at Watches of America$759.50 at Watches of America
Case diameter35 mm40 mm
Thickness10.93 mm10.93 mm
Lug-to-lugNot publishedNot published
MovementPowermatic 80 automaticPowermatic 80 automatic
Power reserve80 hours80 hours
Water resistance100 m100 m
CrystalSapphire with antireflective coating on the undersideSapphire with antireflective coating on the underside
Strap / braceletIntegrated stainless-steel bracelet, butterfly clasp with push-buttons, quick-releaseIntegrated stainless-steel bracelet, butterfly clasp with push-buttons, quick-release

Who should buy which.

The PRX Powermatic 80 35mm Green: A buyer with a smaller wrist, or anyone who prefers a vintage-sized sports watch with a colourful dial. Choose the 40 mm PRX if you have a larger wrist or want more presence.

The PRX Powermatic 80 Ice Blue: Someone who wants one steel automatic for office and weekend, with a dial colour that stands out from the usual black, blue and silver. Skip it if you want to change straps freely, or if pale dials disappear against your skin tone in photos you like. The blue-dial PRX is the quieter choice.

Before you order.

At 10.93 mm the 35 mm case is as thick as the 40 mm, so it looks chunkier in profile. Tissot sells it as unisex; if your wrist is above about 7 inches it may look small.

The integrated bracelet is the whole design, so fit depends on the 39.5 mm case length and the first links rather than a strap you can swap. Tissot does not publish an effective lug-to-lug figure.

A few good questions.

Should I buy the Tissot PRX Powermatic 80 35mm Green or the Tissot PRX Powermatic 80 Ice Blue?

Same Powermatic 80, sapphire, 100 m rating and 10.93 mm thickness; the only real difference is width. Choose the 35 mm if your wrist is under about 6.75 inches or you like vintage proportions. Choose the 40 mm for more presence on an average or larger wrist.

Which is cheaper, the Tissot PRX Powermatic 80 35mm Green or the Tissot PRX Powermatic 80 Ice Blue?

The Tissot PRX Powermatic 80 35mm Green is listed at $679.64, against $759.50 for the Tissot PRX Powermatic 80 Ice Blue, checked 2026-10-16 and 2026-10-17.

Which has the longer power reserve, the Tissot PRX Powermatic 80 35mm Green or the Tissot PRX Powermatic 80 Ice Blue?

Both are rated for 80 hours.

Which is more water resistant, the Tissot PRX Powermatic 80 35mm Green or the Tissot PRX Powermatic 80 Ice Blue?

Both are rated to 100 m.

Is there a discount code for the Tissot PRX Powermatic 80 35mm Green or the Tissot PRX Powermatic 80 Ice Blue?

SEBASTIANBASSOL is our supplied code for 10% off at Watches of America; confirm it applies at checkout. SEBASTIANBASSOL is our supplied code for 10% off at Watches of America; it lowered the Tissot PRX Powermatic 80 Ice Blue to $683.55 in our test.

More head-to-heads.

Specs: Tissot product page (checked October 16, 2026) and Tissot product page (checked October 17, 2026). Prices are the listed prices at the store each shop button opens.