How to Choose the Right Lum-Tec Watch: Combat B, Eclipse, or Solar Marine

Choosing a Lum-Tec comes down to how you plan to use the watch. All current models are hand-assembled and regulated in Mentor, Ohio, feature bright MDV® lume, and include free USA shipping plus lifetime free factory support on timing and seals.

Combat B Series — Classic Field Watches

Lum-Tec Combat B70 Automatic blue dial field watch with MDV lume, USA assembled

The Combat B line (B67, B68, B69, B70, B71, B72, B73, B74 and others) is built for toughness and everyday tool use. Most are 43 mm (the B74 GMT is 39 mm) with strong water resistance and a straightforward military-style design. These are ideal if you want a reliable field watch that can handle outdoor activity, daily wear, or light professional use.

Best for: Outdoor work, military-inspired style, or anyone who prefers a classic tool-watch look.

Eclipse Series — Ultra-Thin Everyday Automatics

Lum-Tec Eclipse E1 ultra-thin USA assembled automatic watch with integrated bracelet

The Eclipse models (E1, E3, E5, E6) are only 9.1 mm thick with integrated bracelets. They keep the USA assembly and MDV lume but in a slimmer package that works equally well with casual clothes or more formal settings.

Best for: Daily wear when you want something thinner and more versatile than a traditional field watch.

Solar Marine Series — Low-Maintenance Dive Watches

Lum-Tec Solar Marine 7 solar-powered dive watch with MDV lume, USA assembled

The Solar Marine watches (SM5, SM6, SM7, SM8) are solar-powered with 300 m water resistance. No battery changes are needed, and they still offer the bright MDV lume and Ohio assembly that define Lum-Tec.

Best for: Water activities, travel, or anyone who wants a tough dive watch without regular battery maintenance.

Quick Decision Guide

  • Want a classic field watch? Look at the Combat B series.
  • Prefer something thinner for everyday wear? Check the Eclipse models.
  • Need high water resistance with minimal upkeep? The Solar Marine series is the practical choice.

All current in-stock models are available with free USA shipping and the same lifetime support. Browse the collections to see which style fits your daily routine.

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.