Raven Custom 39mm DivervsShiro Kara Daibāzu: Hulk SUB
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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.

Custom 39mm Diver

Daibāzu: Hulk SUB
Diameter
39mm
40mm
Lug-to-Lug
n/a
48mm
Thickness
n/a
13.2mm
Water Resistance
200m
highest
100m
Power Reserve
n/a
41h
MSRP
$550
$508
lowest
Movement
Seiko NH35
Seiko NH35
Case
5 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Raven Custom 39mm Diver for its ideal 39mm size, excellent legibility, and satisfying bezel action. The lume is also a strong point, and the overall design is considered refined and exceeding expectations for its price. Some owners find the stock bracelet too simple for the case's finish and opt for aftermarket options, while others describe the included bracelet as "super comfy." One reviewer notes the prominent crown may be divisive. On balance, owners and reviewers rate the Raven Custom 39mm Diver highly for its exceptional value and wearability.
Owners widely praise the Shiro Kara Daibāzu: Hulk SUB for its dial printing, insert, and rehaut finishing, with one owner noting good timegrapher numbers. One owner found the watch waterproof after five days, and another reported it was still running on day six. Some owners note a slightly off-centered 12 marker, and one felt the crystal was not the best, though still looked great. One owner expressed dissatisfaction with the bracelet quality. Overall, owners rate the Shiro Kara Daibāzu: Hulk SUB highly for its dial, insert, and rehaut finishing, with some noting good water resistance.
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