Side by side

Tornek-Rayville CISO M38 FieldvsSeiko Prospex Land Mechanical

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

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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 Prospex Land Mechanical

Owners widely praise the Seiko Prospex Land Mechanical for its unique style, useful day-date complication, and value, with some finding it suitable as a one-watch-for-all-occasions. Accuracy and durability are noted as strengths, with one owner reporting good performance even in water submersion. However, multiple owners criticize its size, with figures around 41mm to 43mm and 14.4mm thickness being flagged as too large and thick for smaller wrists. The Hardlex crystal and a potentially loose inner compass bezel are also points of criticism. On balance, owners rate the Seiko Prospex Land Mechanical highly for its unique style and value, despite concerns over its substantial dimensions.

At a glance

11 of 29 specs differ
Diameter
CISO M38 Field38mm
Prospex Land Mechanical39.5mm
Power Reserve
CISO M38 Field42h
Prospex Land Mechanical72h
Water Resistance
CISO M38 Field100m
Prospex Land Mechanical200m
MSRP
CISO M38 Field$695
Prospex Land Mechanical$995

Full specifications

Case

5 specs
Category
Field
Diameter
38mm
39.5mm
Thickness
12.45mm
12.7mm
Lug-to-Lug
43.6mm
46.4mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
Superluminova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Seiko NH36
Seiko 6R55
Power Reserve
42h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$695
$995
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