Which is cheaper, the Formex Reef 42 mm or the Tissot PRX?

At MSRP the Tissot PRX is the cheaper of the two at $850, against $2,414 for the Formex Reef 42 mm — a $1,564 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Tissot PRX?

The Formex Reef 42 mm wears larger at 42mm versus 40mm for the Tissot PRX — a 2mm difference across the dial.

Which has better water resistance, the Formex Reef 42 mm or the Tissot PRX?

The Formex Reef 42 mm is rated to 300m versus 100m for the Tissot PRX.

Which has a longer power reserve, the Formex Reef 42 mm or the Tissot PRX?

The Tissot PRX carries a 80-hour power reserve against 56 hours on the Formex Reef 42 mm.

What movement does the Formex Reef 42 mm run compared to the Tissot PRX?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Tissot PRX uses the Powermatic 80.

Side by side

Formex Reef 42 mmvsTissot PRX

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Formex Reef 42 mm

reef-42mm-automatic-cosc-300m-black

MSRP $2,414

Tissot PRX

t1374071104100

MSRP $850

At a glance

13 of 29 specs differ

Diameter

Reef 42 mm42mm

PRX40mm

Power Reserve

Reef 42 mm56h

PRX80h

Water Resistance

Reef 42 mm300m

PRX100m

MSRP

Reef 42 mm$2,414

PRX$850

Full specifications

Case

6 specs

Crystal & Dial

4 specs

AR Coating

Inner

Yes

Dial Color

Black

Blue

Indices

Applied

Indexes

Lume

Super-LumiNova

Super-LumiNova ®

Movement

2 specs

Caliber

Sellita SW300-1

Powermatic 80

Power Reserve

56h

80h

Pricing

1 specs

MSRP

$2,414

$850

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Formex Reef 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

The Tissot PRX is widely praised for its exceptional finishing, comfortable wearability, and strong value proposition, with owners and reviewers highlighting its luxurious feel for the price. The integrated bracelet, often noted for its shine, finishing, and brushed surfaces with polished edges, is a significant draw, as is the watch's neo-vintage aesthetic and refined dial pattern. The slim case profile, measuring around 10.5mm to 11mm depending on the source, contributes to its comfortable daily wear, and the 100m water resistance is a practical feature. While one owner reported specific issues with a PRX Chronograph's hands and quality control after service, other sources focus on the Powermatic 80's reliable automatic movement and the overall joy of wearing the Tissot PRX. Some find sizing the bracelet challenging due to the lack of a micro-adjustment option.

From video reviewers

The Powermatic 80 movement with its 80-hour power reserve is consistently praised. The lume brightness is noted as a weakness. Reviewers disagree on the suitability of the lug-to-lug fit for smaller wrists.

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