Henry Archer TidevandvsSignum Siege

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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.

Henry Archer Tidevand at true scale

Tidevand

Signum Siege at true scale

Siege

Diameter

40mm

40mm

Lug-to-Lug

47mm

lowest

48mm

Thickness

10.7mm

10.5mm

lowest

Water Resistance

200m

highest

100m

MSRP

$652

$539

lowest

Movement

Miyota 9015

Miyota 9015

Case

5 specs
Category
Diver
Field
Thickness
10.65mm
10.5mm
Lug-to-Lug
47mm
48mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
Dial Color
Grey
n/a
Lume
None
BGW9 Blue SuperLuminova

Movement

1 specs
Power Reserve
0h
n/a

Pricing

1 specs
MSRP
$652
$539
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Reviews

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

Henry Archer Tidevand

Owners widely praise the Henry Archer Tidevand for its exceptional finishing, noting wonderful brushing and beveled polished edges, alongside a spectacular Aventurine dial that evokes a sense of space. Lume is also a standout feature, described as "off the charts" even on the date wheel numerals. The watch is recognized as a purpose-built dive watch with a 120-click bezel and strong nighttime visibility, balancing rugged construction with refined finishing. One owner reported tight bracelet push pins, which was resolved by customer service. The 40mm case is noted as being 10.65mm thin. On balance, owners rate the Henry Archer Tidevand highly for its striking Aventurine dial and excellent lume at its price point.

From video reviewers

The unique gemstone dial is a standout feature. The polished tungsten bezel is a fingerprint magnet. Reviewers disagreed on the practicality of an all-orange watch for daily wear.

Signum Siege

The dial's unique Blue Copper Turquoise finish is a standout aesthetic feature. The case is noted as being exceptionally simple.