Side by side

Tornek-Rayville CISO M38 FieldvsSeiko 5 Sports Field series

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

CISO M38 Field
Tornek-RayvilleCISO M38 Field
MSRP $695
5 Sports Field series
Seiko5 Sports Field series
MSRP $315

At a glance

12 of 29 specs differ
Diameter
CISO M38 Field38mm
5 Sports Field series39.4mm
Power Reserve
CISO M38 Field42h
5 Sports Field series41h
Water Resistance
CISO M38 Field100m
5 Sports Field series100m
MSRP
CISO M38 Field$695
5 Sports Field series$315

Full specifications

Case

4 specs
Category
Sport
Diameter
38mm
39.4mm
Thickness
12.45mm
13.2mm
Lug-to-Lug
43.6mm
48.1mm

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Flat
Curved
AR Coating
Yes
Inner
Lume
Superluminova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
TMI NH36
4R36
Power Reserve
42h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$695
$315

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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.

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.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series is praised for its value, offering an accessible explorer-style watch with a GMT complication and excellent legibility thanks to LumiBrite on the dial and bezel. The watches feature a 41mm stainless steel case, 100m water resistance, and are powered by either the 4R36 or 4R34 movement, both with a 41-hour power reserve. One reviewer notes the inclusion of a compass bezel with a lumed pearl and fully lumed Arabic numerals on the dial for the non-GMT models. Overall, reviewers consider the Seiko 5 Sports Field GMT models good value under 500 euros.

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