BOLDR Supply Co. Expedition IIvsMarathon Steel Navigator SSNAV Auto
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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.

Expedition II

Steel Navigator SSNAV Auto
Diameter
41mm
41mm
Lug-to-Lug
48mm
48mm
Thickness
14mm
11.5mm
lowest
Water Resistance
200m
highest
60m
Power Reserve
38h
n/a
MSRP
$699
lowest
$1,300
Movement
Sellita SW200-1
Sellita SW200-1
Case
4 specsCrystal & Dial
3 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Boldr Expedition II for its legible dials, comfortable wearability, and excellent value, with many appreciating the functional field watch design and bead-blasted finish. Reviewers and owners alike highlight the compact 41mm case size as ideal for daily wear, and the Sellita SW200-1 movement is considered good for the price. Some owners note minor criticisms such as the stock straps, a slightly large feel for smaller wrists, or dial contrast issues on specific variants. The lume is generally considered good, though one owner notes it fades quickly if not worn. Overall, owners and reviewers rate the Boldr Expedition II highly for its tool watch functionality and value proposition.
The Boldr Expedition II's solid construction and reliability are notable strengths. A weakness is the potential for dim lume brightness, as the entire dial is fully covered in lume but the reviewer's assessment implies it might be inadequate.
Owners widely praise the Marathon Steel Navigator SSNAV Auto for its rugged, tank-like build and comfortable wearability, with many highlighting its bright tritium lume for excellent low-light visibility. The watch is also noted for its accuracy and value as a tool watch with aviation history. Some owners find the watch runs a bit small, and one owner of a sibling model noted it as thicker and heavier than other Navigator models. The Marathon Steel Navigator SSNAV Auto features a 41mm steel case, sapphire crystal, and a bi-directional bezel. Overall, owners rate the Marathon Steel Navigator SSNAV Auto highly for its robust construction and excellent low-light legibility at the price.
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