BOLDR Supply Co. Enigmath SinharajavsJ&Berg B2
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.

Enigmath Sinharaja

B2
Diameter
41mm
38.5mm
Lug-to-Lug
47.5mm
45.2mm
lowest
Thickness
12.8mm
10.4mm
lowest
Water Resistance
200m
highest
100m
Power Reserve
42h
42h
MSRP
$599
n/a
Movement
Miyota 9039
Miyota 9039
Case
5 specsCrystal & Dial
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The BOLDR Supply Co. Enigmath Sinharaja is praised for its functional slide rule bezel, operated by a screw-down crown, and its overall wearability, with owners noting its comfortable size, lightness, and readability. The watch features a visually appealing fumé dial and a sandblasted 41mm case with polished accents, powered by the Miyota 9039 automatic movement. Some owners appreciate the "two-crown coolness" and the integrated slide rule bezel, calling it a "nerd watch" and a good Japanese-movement option under $1000. The canvas strap includes steel eyelets for durability, though one owner found the floating keeper caused discomfort. On balance, owners and reviewers rate the BOLDR Supply Co. Enigmath Sinharaja highly for its unique slide rule functionality and comfortable, attractive design at its price point.
The J&Berg B2 is widely praised for its excellent wearability, legibility, and versatile, genre-busting design, featuring a slim 38.5mm Grade 5 titanium case with a sandblasted satin finish. Owners and reviewers highlight its bold, non-homage approach, quirky dial colors, and utilitarian appeal, with a sandwich dial and BGW9 lume contributing to supreme legibility. The automatic Miyota 9039 movement and 100m water resistance further underscore its tool-watch credentials. Priced at $489, it is considered to offer excellent value. Some find it less suitable for formal events. Overall, owners and reviewers rate the J&Berg B2 highly for its lightweight titanium construction and modern, legible design at the price.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.








