Side by side

Formex Reef 39.5 mmvsVario 1918 Medic Brass

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
1918 Medic Brass
Vario1918 Medic Brass
MSRP $388

At a glance

13 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
1918 Medic Brass40mm
Power Reserve
Reef 39.5 mm56h
1918 Medic Brass40h
Water Resistance
Reef 39.5 mm300m
1918 Medic Brass100m
MSRP
Reef 39.5 mm$2,230
1918 Medic Brass$388

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
39.5mm
40mm
Thickness
11mm
10mm
Lug-to-Lug
45.5mm
48mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Bahama Blue
White
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW300-1
Seiko NH38A
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,230
$388

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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.

Vario 1918 Medic Brass

Owners widely praise the Vario 1918 Medic Brass for its crisp enamel dial, easy-to-read numerals, and cathedral hands, noting the brass case develops an attractive patina over time. However, the soft brass scratches easily, and one owner found the lume to be poor. Accuracy varies, with one example running slow by about 10 seconds per day and another owner deeming the Miyota 82s5 movement just okay. On balance, owners rate the Vario 1918 Medic Brass highly for its unique dial and the evolving character of its brass case.

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