Side by side

Henry Archer TidevandvsSeiko Prospex Sea

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

Tidevand
Henry ArcherTidevand
MSRP $5,299
Prospex Sea
SeikoProspex Sea
MSRP $1,100

At a glance

12 of 29 specs differ
Diameter
Tidevand40mm
Prospex Sea41.3mm
Power Reserve
Tidevand40h
Prospex Sea72h
Water Resistance
Tidevand200m
Prospex Sea300m
MSRP
Tidevand$5,299
Prospex Sea$1,100

Full specifications

Case

5 specs
Diameter
40mm
41.3mm
Thickness
10.65mm
12.5mm
Lug-to-Lug
47mm
48.2mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Grey
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9015
6R55
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$5,299
$1,100

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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 Prospex Sea

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

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