Boldr Odyssey OriginalvsSeiko 5KX
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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.

Odyssey Original

5KX
Diameter
45.5mm
42.5mm
Lug-to-Lug
52mm
46mm
lowest
Thickness
14.5mm
13.4mm
lowest
Water Resistance
500m
highest
100m
Power Reserve
42h
highest
41h
MSRP
$799
$350
lowest
Movement
Sellita SW200-1
Seiko 4R36
Case
4 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Boldr Odyssey Original is praised by owners for the personalized experience offered at the Boldr studio. One owner notes the blue dial and bronze case develop an amazing patina, and the watch comes in its original dive case for $350. The original strap is reported to be in good shape. On balance, owners appreciate the unique patina development and value proposition of the Boldr Odyssey Original.
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.
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