Which is cheaper, the Maen Skymaster 38 MKIII or the Formex Reef 42 mm?

At MSRP the Maen Skymaster 38 MKIII is the cheaper of the two at $1,679, against $2,414 for the Formex Reef 42 mm — a $735 gap before any retailer discounting.

Which is bigger, the Maen Skymaster 38 MKIII or the Formex Reef 42 mm?

The Formex Reef 42 mm wears larger at 42mm versus 38mm for the Maen Skymaster 38 MKIII — a 4mm difference across the dial.

Which has better water resistance, the Maen Skymaster 38 MKIII or the Formex Reef 42 mm?

The Formex Reef 42 mm is rated to 300m versus 100m for the Maen Skymaster 38 MKIII.

Which has a longer power reserve, the Maen Skymaster 38 MKIII or the Formex Reef 42 mm?

The Formex Reef 42 mm carries a 56-hour power reserve against 40 hours on the Maen Skymaster 38 MKIII.

What movement does the Maen Skymaster 38 MKIII run compared to the Formex Reef 42 mm?

Both watches run automatic movements — the Maen Skymaster 38 MKIII uses the Sellita SW510mb and the Formex Reef 42 mm uses the Sellita SW300-1.

Side by side

Maen Skymaster 38 MKIIIvsFormex Reef 42 mm

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

Maen Skymaster 38 MKIII

skymaster-38-m6-1-1

MSRP $1,679

Formex Reef 42 mm

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

MSRP $2,414

At a glance

13 of 29 specs differ

Diameter

Skymaster 38 MKIII38mm

Reef 42 mm42mm

Power Reserve

Skymaster 38 MKIII40h

Reef 42 mm56h

Water Resistance

Skymaster 38 MKIII100m

Reef 42 mm300m

MSRP

Skymaster 38 MKIII$1,679

Reef 42 mm$2,414

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal

Domed Sapphire

Sapphire

Dial Color

M6.1.1

Black

Lume

None

Super-LumiNova

Movement

2 specs

Caliber

Sellita SW510mb

Sellita SW300-1

Power Reserve

40h

56h

Pricing

1 specs

MSRP

$1,679

$2,414

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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.

Maen Skymaster 38 MKIII

The Maen Skymaster 38 MKIII is praised for its refined case, impressive fit and finish, and compact 38mm size, which offers a premium feel with a sharp, legible dial and well-executed applied markers. Reviewers note the sweet winding action and the vintage-inspired brown sunburst dial with dauphine hands and lollipop register pointers. The watch is powered by a manual-wind Sellita SW510Mb movement with a 63-hour power reserve. Accuracy figures vary, with one reviewer reporting +7 seconds per day and another stating a tolerance of +/-15 seconds per day. On balance, owners and reviewers appreciate the Maen Skymaster 38 MKIII for its refined vintage-inspired design and compact dimensions at its price point.

From video reviewers

The 38mm case size is a key strength for the Maen Skymaster 38 MKIII. Reviewers noted the excellent quality-price ratio for a Swiss-made chronograph.

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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