Shiro Kara Daibāzu: Hulk SUBvsYema Navygraf Heritage
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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.

Daibāzu: Hulk SUB

Navygraf Heritage
Diameter
40mm
39mm
Lug-to-Lug
48mm
46mm
lowest
Thickness
13.2mm
10.8mm
lowest
Water Resistance
100m
100m
Power Reserve
41h
n/a
MSRP
$508
lowest
$990
Movement
Seiko NH35
Sellita SW200-1
Case
5 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
Owners widely praise the Yema Navygraf Heritage for its comfortable 39mm wearability and faithful reissue of a 1970s model, with craftsmanship often noted as better than expected. Some owners highlight its retro look, yellow hands for legibility, and unique case design. However, multiple owners report quality control issues, including bezel free play, misalignment, and crown seating problems. Accuracy figures vary, with one owner noting it runs at +10 to +15 seconds per day, while another regulated theirs after losing 30 seconds per day, though another owner states theirs is accurate. The bezel is described as super tight to turn by one owner, despite having precise 120 clicks. Overall, owners find the Yema Navygraf Heritage a good-looking and quirky watch with notable value for its design and build.
The 39mm case size and comfortable wearability are consistently praised. The in-house MBP1000 movement is mentioned as a strength by multiple reviewers. Reviewers disagree on the movement's quality, with one suggesting it should not have passed quality control while others highlight it as a positive feature.
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