Formex Field AutomaticvsSeiko Seiko 5 Sports Field series

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Formex Field Automatic at true scale

Field Automatic

Seiko Seiko 5 Sports Field series at true scale

Seiko 5 Sports Field series

Diameter

40mm

39.4mm

Lug-to-Lug

46.6mm

lowest

48.1mm

Thickness

10.6mm

lowest

13.2mm

Water Resistance

150m

highest

100m

Power Reserve

41h

41h

MSRP

$881

$315

lowest

Movement

Sellita SW200-1

Seiko 4R36

Case

6 specs
Category
Field
Sport
Diameter
40mm
39.4mm
Thickness
10.6mm
13.2mm
Lug-to-Lug
46.6mm
48.1mm
Material
Titanium
Stainless Steel
Water Resistance
150m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
Crystal Shape
n/a
Curved
Dial Color
Ash Grey
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Sellita SW200-1
Seiko 4R36
Jewels
0
24

Pricing

1 specs
MSRP
$881
$315
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Formex Field Automatic

The Formex Field Automatic is widely praised for its durable, scratch-resistant Grade 2 titanium case with a hardening treatment, offering robust and lightweight wearability. Owners and reviewers highlight the upmarket feel and legibility of its complex dials, the comfort provided by quick-release straps and carbon clasps, and the value it presents under $1000. The Sellita SW200-1 movement is considered a practical choice, with one owner reporting accuracy of +1 second per day. Some find the numeral typography less appealing, and one reviewer notes the lume application is thin and not long-lasting. The watch is priced at $870 or £695. On balance, owners and reviewers rate the Formex Field Automatic highly for its comfortable, lightweight titanium construction and well-executed, legible dials at its price point.

From video reviewers

The titanium case construction and the sandwich dial are consistently praised. Reviewers noted a perceived "corner cut" and questioned the value at its price point.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series is praised for its excellent legibility, featuring fully lumed Arabic numerals and a lumed pearl on the compass bezel. Reviewers note the reliable 4R36 movement and 10 bar water resistance, with some considering the watches good value under 500 euros. The GMT variants, specifically the SSK023 and SSK025, offer an accessible explorer watch with a GMT complication and a fixed 24-hour bezel. Overall, owners and reviewers rate the Seiko 5 Sports Field series highly for its legibility and value proposition.