Orient AC0Q-40 Diver WatchvsSTEELDIVE SD1904

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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.

Orient AC0Q-40 Diver Watch at true scale

AC0Q-40 Diver Watch

STEELDIVE SD1904 at true scale

SD1904

Diameter

39.9mm

38mm

Lug-to-Lug

46.5mm

lowest

47.6mm

Thickness

12.8mm

lowest

14.1mm

Water Resistance

200m

200m

Power Reserve

40h

n/a

MSRP

$370

$98

lowest

Movement

Orient F6722

Seiko NH35

Case

5 specs
Diameter
39.9mm
38mm
Thickness
12.8mm
14.05mm
Lug-to-Lug
46.5mm
47.6mm
Lug Width
20mm
n/a
Material
Stainless Steel
Ceramic

Crystal & Dial

1 specs
Dial Color
Black
n/a

Movement

7 specs
Caliber
Orient F6722
Seiko NH35
Beat Rate
21,600 vph
0 vph
Power Reserve
40h
0h
Jewels
22
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Date
None

Pricing

1 specs
MSRP
$370
$98
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Reviews

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

Orient AC0Q-40 Diver Watch

Owners praise the Orient AC0Q-40 Diver Watch for its value, sapphire crystal, and durable build quality, with many appreciating the 39.9mm case size for its smaller, trendy appeal and the raw steel bezel for a vintage look. The bracelet features folded end links, and while the in-house automatic Orient F6722 movement is considered a good workhorse, the watch is not ISO certified for diving, though suitable for swimming. Unless a purple dial is specifically desired, other color options are recommended. On balance, owners rate the Orient AC0Q-40 Diver Watch highly for its appealing design and value proposition in a compact package.

STEELDIVE SD1904

Owners widely praise the STEELDIVE SD1904 for its comfortable 38mm case size, which sits flat and wears well even on larger wrists, and for its very good case brushing and finishing with no sharp edges. The lume is consistently highlighted as excellent, lasting all night, and the watch is considered a great value at its $180 price point. However, one owner feels Steeldive lags behind competitors in case finishing, bracelet quality, and quality control, while another reported a bezel insert detaching and a bent crown shaft on different Steeldive models. The glossy dial can also create glare, posing challenges for photography. On balance, owners rate the STEELDIVE SD1904 highly for its excellent lume and comfortable wearability at an affordable price.

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