Which is cheaper, the Formex Reef 42 mm or the Yema Superman Titanium Tourbillon CMM.31 Limited Edition?

At MSRP the Formex Reef 42 mm is the cheaper of the two at $2,414, against $13,000 for the Yema Superman Titanium Tourbillon CMM.31 Limited Edition — a $10,586 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Yema Superman Titanium Tourbillon CMM.31 Limited Edition?

The Yema Superman Titanium Tourbillon CMM.31 Limited Edition wears larger at 43mm versus 42mm for the Formex Reef 42 mm — a 1mm difference across the dial.

Which has a longer power reserve, the Formex Reef 42 mm or the Yema Superman Titanium Tourbillon CMM.31 Limited Edition?

The Formex Reef 42 mm carries a 56-hour power reserve against 40 hours on the Yema Superman Titanium Tourbillon CMM.31 Limited Edition.

What movement does the Formex Reef 42 mm run compared to the Yema Superman Titanium Tourbillon CMM.31 Limited Edition?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Yema Superman Titanium Tourbillon CMM.31 Limited Edition uses the Yema CMM.31 Tourbillon.

Side by side

Formex Reef 42 mmvsYema Superman Titanium Tourbillon CMM.31 Limited Edition

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

Yema Superman Titanium Tourbillon CMM.31 Limited Edition

yema-superman-titanium-tourbillon-cmm-31-limited-edition-12-26-31-65-te-mt

MSRP $13,000

At a glance

10 of 29 specs differ

Diameter

Reef 42 mm42mm

Superman Titanium Tourbillon CMM.31 Limited Edition43mm

Power Reserve

Reef 42 mm56h

Superman Titanium Tourbillon CMM.31 Limited Edition40h

Water Resistance

Reef 42 mm300m

Superman Titanium Tourbillon CMM.31 Limited Edition300m

MSRP

Reef 42 mm$2,414

Superman Titanium Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

4 specs

Diameter

42mm

43mm

Thickness

11.4mm

11.7mm

Lug-to-Lug

47mm

—

Material

Stainless Steel

Titanium

Crystal & Dial

3 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Black

Titanium

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW300-1

Yema CMM.31 Tourbillon

Power Reserve

56h

40h

Pricing

1 specs

MSRP

$2,414

$13,000

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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.

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Fratello

Yema Superman Titanium Tourbillon CMM.31 Limited Edition

The Yema Superman Titanium Tourbillon CMM.31 Limited Edition is noted for its in-house titanium tourbillon movement offering a 105-hour power reserve and 200m water resistance, alongside a unique asphalt-grained dial. Owners find the 43mm size wearable, with one describing it as a contradictory "toolwatch" with exceptional movement craftsmanship. A reviewer flags the bracelet clasp's extension system as crude. On balance, owners and reviewers highlight the impressive movement and dial as key strengths of the Yema Superman Titanium Tourbillon CMM.31 Limited Edition.

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