Seiko Prospex Sea PADI Automatic Diver's SRPB99vsSpinnaker Hull
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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.

Prospex Sea PADI Automatic Diver's SRPB99

Hull
Diameter
43.8mm
42mm
Lug-to-Lug
n/a
47.5mm
Thickness
12.8mm
lowest
15mm
Water Resistance
200m
highest
100m
MSRP
n/a
$159
Movement
Seiko 4R35
Seiko NH35
Case
6 specsCrystal & Dial
4 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Seiko Prospex Sea PADI Automatic Diver's SRPB99 for its excellent value and refined wave dial pattern, with one reviewer noting its sharp, angular 43.8mm case wears smaller than its dimensions suggest. The 4R35 movement hacks and handwinds, and the watch keeps great time. Some owners find the 43.8mm case a bit large, though others report the short, steeply angled lugs enhance wearability. The entry-level stainless steel bracelet is considered good but not exceptional, and one owner found it difficult to resize. The dial's blue offers depth and reflectivity, though the red hash marks are seen as a drawback by one owner. Overall, owners rate the Seiko Prospex Sea PADI Automatic Diver's SRPB99 highly for its outstanding value and refined dial.
The Spinnaker Hull Chrono California is praised for its textured dial and high-quality jubilee bracelet, with one owner finding it superior to Seiko's. The retro styling is appealing, though the 24-hour subdial is considered functionally illogical and visually unappealing by one owner. The Spinnaker Hull Chronograph is praised for its deep pine green sandwich dial, bold cushion case, and vintage charm, offering significant style for its budget price of 129€. On balance, owners rate the Spinnaker Hull highly for its vintage charm and value, despite some reservations about the subdial design and crystal material.
The watch's lume is a strong point. Reviewers noted the absence of a sapphire crystal as a drawback.
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