Side by side

Henry Archer TidevandvsSeiko Monster

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

Tidevand
Henry ArcherTidevand
MSRP $5,299
Monster
SeikoMonster
MSRP $550

At a glance

11 of 29 specs differ
Diameter
Tidevand40mm
Monster42.4mm
Power Reserve
Tidevand40h
Monster41h
Water Resistance
Tidevand200m
Monster200m
MSRP
Tidevand$5,299
Monster$550

Full specifications

Case

4 specs
Diameter
40mm
42.4mm
Thickness
10.65mm
13.4mm
Lug-to-Lug
47mm
49.4mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Grey
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9015
4R36
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$5,299
$550

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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.

Henry Archer Tidevand

Owners widely praise the Henry Archer Tidevand for its exceptional finishing, highlighting the contrast between brushing and beveled polished edges, and its spectacular Aventurine dial, which evokes a sense of space. The BGW9 lume is described as "off the charts" and provides strong nighttime visibility, complementing the watch's rugged construction and refined aesthetic. The 40mm case is noted as being thin at 10.65mm, and the watch features a 120-click diver's bezel and 200 meters of water resistance. One owner reported tight bracelet push pins, but Henry Archer's customer service resolved the issue. On balance, owners rate the Henry Archer Tidevand highly for its striking Aventurine dial and robust lume.

Seiko Monster

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many noting its comfortable wearability. Reviewers consistently highlight its impressive finishing and classic dive watch design, often comparing it favorably to older models. Some owners find the size substantial, with one noting it as big, thick, and heavy on a 6.5-inch wrist, while others find it perfect. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and robust, classic dive watch design.

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