Spinnaker Hull DivervsSeiko Prospex Sea

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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.

Spinnaker Hull Diver at true scale

Hull Diver

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

42mm

41.7mm

Lug-to-Lug

47.5mm

lowest

49.5mm

Thickness

15mm

12.3mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

n/a

41h

MSRP

$375

lowest

$595

Movement

Seiko NH35

Seiko 4R35

Case

6 specs
Diameter
42mm
41.7mm
Thickness
15mm
12.3mm
Lug-to-Lug
47.5mm
49.5mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Green
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH35
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$375
$595
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Reviews

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

Spinnaker Hull Diver

The Spinnaker Hull Diver is widely praised for its excellent build quality, with owners highlighting the milled clasp, solid links, and dual-part case construction that contributes to a reduced thickness. Reviewers and owners alike commend its great finishing, accurate Seiko NH35 movement, and the value it offers at its price point, with one owner calling it one of their best affordable watches. The blue dial is noted for its attractive play of light, and the sapphire crystal features a strong anti-reflective coating. However, the lume is considered average by some, and a few owners expressed a desire for a higher beat movement. The screwdown crown is easy to operate, and micro-adjustment on the bracelet allows for a good fit. On balance, owners rate the Spinnaker Hull Diver highly for its exceptional build quality and finishing at an affordable price.

From video reviewers

The cushion case design and solid construction are praised. The bracelet is noted as solid stainless steel.

Seiko Prospex Sea

Owners widely report the Seiko Prospex Sea is a well-built watch at a fair price, with some finding its 41.7mm case size perfect while others with smaller wrists consider it big, thick, and heavy. Reviewers consistently praise the excellent lume and robust design. One owner notes the bezel action is smoother and more precise than some other Seiko divers. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its value and proven design.