Seiko 5KXvsSugess Seestern DOX07 V4

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures

Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Seiko 5KX at true scale

5KX

Sugess Seestern DOX07 V4 at true scale

Seestern DOX07 V4

Diameter

42.5mm

42mm

Lug-to-Lug

46mm

n/a

Thickness

13.4mm

n/a

Water Resistance

100m

200m

highest

Power Reserve

41h

n/a

MSRP

$350

$190

lowest

Movement

Seiko 4R36

Automatic

Case

5 specs
Diameter
42.5mm
42mm
Thickness
13.4mm
n/a
Lug-to-Lug
46mm
n/a
Lug Width
22mm
n/a
Water Resistance
100m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko 4R36
n/a
Power Reserve
41h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$350
$190
Keep your wishlist and collection together in the appExplore the app

Reviews

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

Seiko 5KX

Owners widely praise the Seiko 5KX for its strong lume and value, with many reporting accuracy within +/-5 to 10 seconds per day, though some experience +/-1 second. The 42.5mm case is noted to wear smaller, and the watch offers a comfortable feel for many. Some owners are split on the bracelet quality, with opinions ranging from "cheaper side" with hollow links to "flimsy-feeling" jubilee. A few quality control issues have been reported, including a failed bezel clickspring and misaligned components. The Seiko 5KX is seen by some as a worthy successor to the original SKX, offering an upgraded movement with hacking and hand-winding capabilities, though others lament the loss of ISO certification and a screw-down crown. Overall, owners rate the Seiko 5KX highly for its excellent lume and value proposition, making it a popular choice for everyday wear.

Sugess Seestern DOX07 V4

Owners widely report the Sugess Seestern DOX07 V4 offers exceptional value for its price point, with one owner stating it "really blows me" away and is one of the nicest watches they have ever owned for the price. The bezel action is described as crisp, and the dial's aesthetics are considered exceptional for the cost. Some owners express a preference for Sugess branding over Seestern, citing a branded rehaut and signed clasp as superior, while others favor Seestern due to dissatisfaction with Sugess's logo font. On balance, owners rate the Sugess Seestern DOX07 V4 highly for its impressive finishing and aesthetic appeal at an accessible price.