Side by side

Formex Reef 39.5 mmvsTissot Heritage 1938

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
Heritage 1938
TissotHeritage 1938
MSRP $925

At a glance

14 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Heritage 193839mm
Power Reserve
Reef 39.5 mm56h
Heritage 193838h
Water Resistance
Reef 39.5 mm300m
Heritage 193850m
MSRP
Reef 39.5 mm$2,230
Heritage 1938$925

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39.5mm
39mm
Thickness
11mm
11.1mm
Lug-to-Lug
45.5mm
39mm
Lug Width
22mm
20mm
Water Resistance
300m
50m

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Bahama Blue
Anthracite
Indices
Applied
Arabic
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW300-1
11 1/2'''
Power Reserve
56h
38h

Pricing

1 specs
MSRP
$2,230
$925

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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.

Tissot Heritage 1938

Owners and reviewers widely praise the Tissot Heritage 1938 for its stunning vintage-inspired design and excellent value, particularly as a COSC-certified automatic under $1000. The dial's ability to catch light and subtly change colors, along with rosy gold numerals, is a frequent highlight. The watch uses a chronometer-certified ETA 2824-2 movement, though its 38-hour power reserve is noted as less than some contemporary offerings. Some owners find the 39mm case size appears larger on the wrist, with a desire for smaller options. Overall, owners rate the Tissot Heritage 1938 highly for its charming retro aesthetics and impressive chronometer movement at an accessible price point.

From video reviewers

The most attainable Swiss chronometer is a key strength. Reviewers did not agree on any weaknesses.

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