Side by side

Formex Reef 39.5 mmvsLongines LONGINES MASTER COLLECTION

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
LONGINES MASTER COLLECTION
LonginesLONGINES MASTER COLLECTION
MSRP $2,850

At a glance

11 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
LONGINES MASTER COLLECTION38.5mm
Power Reserve
Reef 39.5 mm56h
LONGINES MASTER COLLECTION72h
Water Resistance
Reef 39.5 mm300m
LONGINES MASTER COLLECTION30m
MSRP
Reef 39.5 mm$2,230
LONGINES MASTER COLLECTION$2,850

Full specifications

Case

6 specs
Category
Diver
Diameter
39.5mm
38.5mm
Thickness
11mm
10.2mm
Lug-to-Lug
45.5mm
44.9mm
Lug Width
22mm
20mm
Water Resistance
300m
30m

Crystal & Dial

2 specs
Dial Color
Bahama Blue
Ivory
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW300-1
L893.5
Power Reserve
56h
72h

Pricing

1 specs
MSRP
$2,230
$2,850

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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 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 MASTER COLLECTION

Owners widely praise the Longines Master Collection for its attractive designs, heritage feel, and value, with specific models highlighted for their legibility and manageable sizes. One owner finds the 40mm moonphase chronograph complete calendar mesmerizing and versatile at around $1700, while another appreciates the 38mm World Timer's looks and blue hands. A drawback noted across different models is limited water resistance, with one owner selling their watch due to this, and the World Timer disc requiring manual adjustment for daylight saving time in some areas. On balance, owners rate the Longines Master Collection highly for its aesthetic appeal and value proposition, despite some limitations in water resistance and functionality.

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