Side by side

Formex Reef 39.5 mmvsLongines FLAGSHIP CLASSIC

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

Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230
FLAGSHIP CLASSIC
LonginesFLAGSHIP CLASSIC
MSRP $2,350

At a glance

20 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
FLAGSHIP CLASSIC40mm
Power Reserve
Reef 39.5 mm56h
FLAGSHIP CLASSIC72h
Water Resistance
Reef 39.5 mm300m
FLAGSHIP CLASSIC30m
MSRP
Reef 39.5 mm$2,230
FLAGSHIP CLASSIC$2,350

Full specifications

Case

8 specs
Category
Diver
Dress
Diameter
39.5mm
40mm
Thickness
11mm
8.7mm
Lug-to-Lug
45.5mm
47mm
Lug Width
22mm
21mm
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Bahama Blue
Silver
Indices
Applied
Lume
Super-LumiNova
None

Movement

6 specs
Caliber
Sellita SW300-1
L888.5
Beat Rate
28,800 vph
0 vph
Power Reserve
56h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$2,230
$2,350

Follow this matchup

Get a note when Formex Reef 39.5 mm vs Longines FLAGSHIP CLASSIC 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.

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.

Longines FLAGSHIP CLASSIC

Owners widely praise the Longines FLAGSHIP CLASSIC for its faithful vintage design, impressive finishing for the price, and classic sizing, with many appreciating the "marble-like" patina on the cream dial. The watch is considered a strong value, offering great construction and a genuine alligator strap, with some owners finding it a versatile everyday or dress watch. Accuracy is generally reported as decent, and a slim movement contributes to its wearability. However, some owners note the 3-bar water resistance is limiting, and one owner found the 12.4mm thickness and flat caseback made it wear tall and difficult to slip under a cuff. On balance, owners rate the Longines FLAGSHIP CLASSIC highly for its vintage aesthetic and value proposition.

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.