Which is cheaper, the Formex Reef 42 mm or the Yema Granvelle CMM.29?

At MSRP the Yema Granvelle CMM.29 is the cheaper of the two at $1,913, against $2,414 for the Formex Reef 42 mm — a $501 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Yema Granvelle CMM.29?

The Formex Reef 42 mm wears larger at 42mm versus 39mm for the Yema Granvelle CMM.29 — a 3mm difference across the dial.

Which has better water resistance, the Formex Reef 42 mm or the Yema Granvelle CMM.29?

The Formex Reef 42 mm is rated to 300m versus 50m for the Yema Granvelle CMM.29.

Which has a longer power reserve, the Formex Reef 42 mm or the Yema Granvelle CMM.29?

The Formex Reef 42 mm carries a 56-hour power reserve against 40 hours on the Yema Granvelle CMM.29.

What movement does the Formex Reef 42 mm run compared to the Yema Granvelle CMM.29?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Yema Granvelle CMM.29 uses the Yema CMM.29.

Side by side

Formex Reef 42 mmvsYema Granvelle CMM.29

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 Granvelle CMM.29

yema-granvelle-cmm-20-70-25-29-04-sn-l8

MSRP $1,913

At a glance

11 of 29 specs differ

Diameter

Reef 42 mm42mm

Granvelle CMM.2939mm

Power Reserve

Reef 42 mm56h

Granvelle CMM.2940h

Water Resistance

Reef 42 mm300m

Granvelle CMM.2950m

MSRP

Reef 42 mm$2,414

Granvelle CMM.29$1,913

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW300-1

Yema CMM.29

Power Reserve

56h

40h

Pricing

1 specs

MSRP

$2,414

$1,913

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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.

WatchUSeek

A Blog to Watch

Fratello

Yema Granvelle CMM.29

Owners praise the Yema Granvelle CMM.29's gorgeous dial, noting its guilloché pattern and carved hour indices that catch the light. One owner describes the movement as a "feast for the eyes" but finds the watch frustrating at work due to its lack of a specific function. On balance, owners appreciate the Yema Granvelle CMM.29 for its visually striking dial and movement finishing, with some finding its utility limited in certain professional contexts.

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