Side by side

CWC E9 Automatic Diver WatchvsFormex Reef 39.5 mm

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

E9 Automatic Diver Watch
CWCE9 Automatic Diver Watch
MSRP $1,391
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

8 of 29 specs differ
Diameter
E9 Automatic Diver Watch41mm
Reef 39.5 mm39.5mm
Power Reserve
E9 Automatic Diver Watch40h
Reef 39.5 mm56h
Water Resistance
E9 Automatic Diver Watch300m
Reef 39.5 mm300m
MSRP
E9 Automatic Diver Watch$1,391
Reef 39.5 mm$2,230

Full specifications

Case

4 specs
Diameter
41mm
39.5mm
Thickness
12mm
11mm
Lug-to-Lug
47mm
45.5mm
Lug Width
20mm
22mm

Crystal & Dial

1 specs
Dial Color
CWC E9 Automatic Diver Watch (SF300-E9 AS120)
Bahama Blue

Movement

2 specs
Caliber
Sellita SW200-1
Sellita SW300-1
Power Reserve
40h
56h

Pricing

1 specs
MSRP
$1,391
$2,230

Follow this matchup

Get a note when CWC E9 Automatic Diver Watch vs Formex Reef 39.5 mm gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

CWC E9 Automatic Diver Watch

Owners widely praise the CWC E9 Automatic Diver Watch for its military-spec toughness and satisfyingly easy-to-wind crown, with one owner calling it a perfect reissue due to its thin case, small size, and legibility. Some owners appreciate its durability and value as a beater or summer watch, noting its solid bars are a military requirement and highlighting its significant wrist presence and unique "Jolly Roger" dial design. Critics find the CWC E9 Automatic Diver Watch overpriced for its mineral crystal and 60-click bezel, despite its military heritage and HAQ movement, and its luminous paint is noted as low glow. Overall, owners rate the CWC E9 Automatic Diver Watch highly for its military-spec toughness and wrist presence, despite some reservations about its value proposition.

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.