lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/Formex/Reef 42 mm
SpecStudio
Formex Reef 42 mm
Click to inspect
Formex · Reef

Formex Reef 42 mm

Diver

$2,414Sold out

Case

Diameter
42mm
Thickness
11.4mm
Lug-to-lug
47mm
Lug width
22mm
Material
Stainless Steel
Water resistance
300m

Crystal & dial

Crystal
Sapphire
Dial colour
Black
Lume
Super-LumiNova

Movement

Caliber
Sellita SW300-1
Type
Automatic
Power reserve
56h

Sellita

A slim Swiss automatic from Sellita, a pin-compatible alternative to the ETA 2892-A2, beating at 28,800 vph with roughly 42–56 hours of power reserve. Favoured by brands needing a thinner movement than the SW200.

Design language

Case shape
round
Dial style
sunburst
Bezel
rotating
Bracelet
lug-attached
Hands
baton

AI-detected from the product image

Reef 42 mm collection · 2 watches

Reef 39.5 mm
Reef 39.5 mm39.5mm

6 colorways

Alternatives

01The market

Market prices.

Retail$2,414

The forum market

See what sellers are asking.

Active listings0Across watch forums
Closed · 30d1Asking-price history

See the asking prices behind closed forum listings. Market+ adds medians with their sample sizes and the weekly trend.

02The connection engine

More like this.

Formex Reef 39.5 mm

Formex

Reef 39.5 mm

39.5mm · Automatic$2,230

ZRC 1904 HETERIUM -METAL

ZRC 1904

HETERIUM -METAL

41.5mm · Automatic$3,690

ZRC 1904 MN64 -Metal

ZRC 1904

MN64 -Metal

41.5mm · Automatic$3,690

Serket Watch Co Reef X Diver

Serket Watch Co

Reef X Diver

43mm · Automatic$499

ZRC 1904 FULL TITANE – NEW

ZRC 1904

FULL TITANE – NEW

41.5mm · Automatic$4,690

Knot Watches AT1-40SSV

Knot Watches

AT1-40SSV

40mm · Automatic$869

View all alternatives

03The community take

Owners talk.

“

Owners widely praise the Formex Reef 42 mm for its comfortable bracelet with a micro-adjust clasp and its overall build and finish, with one owner strongly recommending it. Reviewers highlight its impressive wearability and versatility, noting the COSC-certified Sellita SW300-1 movement and well-finished bracelet. One owner found the lugs' taper hinders third-party strap fit and observed the seconds hand does not perfectly align with markers. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its comfortable bracelet and solid build at its price point.

Synthesized from 4 sources
Reddit↗
WatchUSeek↗
A Blog to Watch↗
Fratello↗
Open the discussion

On video

On real wrists

No shots yet. Show how it wears.

04The paper trail

Cross-shops

Popular comparisons.

The matchups people make with the Formex Reef 42 mm most: open one to see it side by side.

  • Bremont S300vs Formex Reef 42 mm→
Ask the communityStart a discussion about the Reef 42 mm: get takes from other collectors.Ask →

05The discussion

Talk about the Formex Reef 42 mm.