Watch Glossary

Iridescent substance from oyster and abalone shells used on premium watch dials

Specification for bezel index positioning and lume application on military-issued timepieces.

Reference number assigned to military watch procurement contracts in NATO inventory system.

System indexing military timepieces by function, issuing nation, and technical specifications for logistics.

NATO Reference Number (NRN) cataloging system for military equipment including issued wristwatches.

13-digit North Atlantic Treaty Organization catalog identifier for military watches.

Engraved NATO identification number on military watch case or bracelet connector bar.

International cataloging system assigning unique identification codes to military watches.

Nylon fabric strap with metal hardware, durable alternative to traditional bracelets

Universal lug width specification (typically 20mm) allowing rapid strap interchange in field conditions.

Standardized fabric strap format adopted by NATO military forces for field watches.

Case lug design allowing rapid field replacement of watch band using standard NATO strap system.

Patek Philippe's prestigious integrated bracelet sports watch since 1976

Breitling's pilot chronograph with slide rule bezel since 1952

Near-field communication chip enabling contactless payments and data exchange

Near-field communication module enabling contactless transactions directly from watch face

Electroplating nickel onto watch components for corrosion protection and silver-like finish.

Intoxicating effect of nitrogen at depth; diver watches help track time/depth.

Rolex's modern shock absorber protecting the balance wheel from impacts and vibrations.

Maximum time underwater at specific depth without mandatory decompression stop.

Modern luminous compounds like Super-LumiNova that glow without radioactive elements

New Old Stock - unworn vintage watch still in original packaging from factory

Standard specification ensuring replacement bezels fit military-issued watch cases.

NATO Stock Number military catalog reference enabling supply chain tracking.

Group of military watches manufactured under single NATO stock number specification.

Velvet-like leather surface, refined appearance, more durable than suede

Limited edition watch with individual sequential number engraved, indicates exact production count

Pinned watch worn on medical uniforms, typically featuring large numerals and clean dial design.

Synthetic fabric strap, affordable, water-resistant, available in many colors