Side by side

Formex Reef 39.5 mmvsTornek-Rayville CISO M38 Field

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
CISO M38 Field
Tornek-RayvilleCISO M38 Field
MSRP $695

At a glance

12 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
CISO M38 Field38mm
Power Reserve
Reef 39.5 mm56h
CISO M38 Field42h
Water Resistance
Reef 39.5 mm300m
CISO M38 Field100m
MSRP
Reef 39.5 mm$2,230
CISO M38 Field$695

Full specifications

Case

6 specs
Category
Diver
Diameter
39.5mm
38mm
Thickness
11mm
12.45mm
Lug-to-Lug
45.5mm
43.6mm
Lug Width
22mm
20mm
Water Resistance
300m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Bahama Blue
Black
Lume
Super-LumiNova
Superluminova

Movement

2 specs
Caliber
Sellita SW300-1
TMI NH36
Power Reserve
56h
42h

Pricing

1 specs
MSRP
$2,230
$695

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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.

Tornek-Rayville CISO M38 Field

Owners widely report the Tornek-Rayville CISO M38 Field offers high overall quality with a comfortable bracelet featuring single-sided screw links. The watch exhibits minimal wear, with only hairline scratches and a faint, difficult-to-photograph bezel mark. On balance, owners value the Tornek-Rayville CISO M38 Field for its robust build and comfortable wearability.

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