AD: Abbreviation of Authorised Dealer - self-explanatory.

A-Serial: A vintage Rolex reference number indicating a production date from the late 1950s to 1960s.

Barn Find: A watch discovered in unexpected, often untouched conditions, like finding it in a barn.

Bark Finish: A textured finish on a watch bracelet resembling tree bark.

Basketball: A vintage Rolex GMT-Master with a faded bezel, resembling a basketball.

Batman: Refers to a blue and black bezel on a GMT watch, specifically the Rolex GMT-Master II on an Oyster bracelet. The same watch on a Jubilee bracelet is referred to as a Batgirl. Similar use and origin as the more popular Pepsi further down.

Beater: or “Daily Beater” - your most often worn daily watch.

Bezel Action: The smoothness and precision of rotating the bezel on a watch.

Big Crown: Vintage Rolex Submariner with an oversized crown.

Bishop: Rolex Day-Date.

Bubbleback: Vintage Rolex watches with a rounded case back.

Bumblebee: Omega Speedmaster with a black and yellow color scheme.

Bust Down: also called “Iced out” - a diamond-encrusted watch, starting from the dial ending with a bracelet.

Blueberry: A vintage Rolex GMT-Master with a blue and red "Pepsi" bezel.

Bracelet Monster: Someone who prefers watches on metal bracelets rather than leather or NATO straps.

Bump: A noticeable increase in a watch's market value.

Cake: A vintage Rolex Daytona with a "Paul Newman" dial.

Carré: A square-shaped watch case.

Choco: Vintage Rolex GMT-Master with a brown and gold bezel.

Coke: Rolex GMT-Master II with a black and red bezel.

Co-Axial: Watches equipped with Omega's Co-Axial escapement.

Compressor: Watches with a compressor-style case, such as Jaeger-LeCoultre Polaris.

Connoisseur's Choice: A term for a watch that is highly regarded among experienced collectors.

Cyclops: The magnifying lens on the date window of a Rolex watch.

Cyclopsless: Referring to a Rolex without a date magnifier.

Daily Diver: The reliable watch one wears every day.

Desk Diver: A dive watch that rarely sees actual diving and is mainly worn for desk or everyday use.

Destro: A watch for left-handed people and meant to be worn on the right wrist, with the crown on the left side.

Dirty Dozen: A group of 12 watch manufacturers that supplied watches to the British military during World War II.

Double Red: A vintage Rolex Sea-Dweller with two lines of red text on the dial.

Dress Watch: A thin and elegant watch suitable for formal occasions.

EDC Watch: Everyday Carry watch, a versatile timepiece for daily wear.

Exhibition Case Back: A transparent case back allowing a view of the movement.

Fanboy: a collector/enthusiast that is focus mostly on the one brand or complcation for instance Rolex fanboy, tourbillon fanboy etc.

Fat Font: A vintage Rolex Submariner with a thicker font on the bezel.

Fat Lady: Rolex GMT-Master II with a thicker case.

Fauxtina: Term referring to artificial vintage effect applied to new watched making them looking like they are older than they truly are. Seen mostly on dials with fluorescent index markers.

Flecto: Popular on Instagram, this word describes a beautiful reflection of light captured on a watch’s crystal in a photography.

Flieger: German for "pilot," often used to refer to pilot watches.

Flipper: a person who bought the watch only to resell it immediately and make a profit with this operation. Can also be used to describe someone who frequently buys and resells watches either at cost or at a loss to feed their habit.

Fluted Bezel: A grooved or ridged bezel, often found on Rolex watches.

Frankenwatch: A “Frankenstein watch”. In reference to second-hand and vintage watches, a watch that has been repaired or modified using parts not from the original watch — or even the original manufacturer — usually devaluing it in comparison to an all-original.

Frogman: A diver's watch, often used by military frogmen.

GADA: Acronym for "Go Anywhere, Do Anything," describing a versatile and durable watch.

Ghost(ed) Bezel: A bezel that has faded, giving it a ghost-like appearance.

Ghost Date: A date window without a date magnifier.

Gilt Dial: A watch dial with gold lettering or accents.

Grail Watch: or “Holy Grail” - The ultimate dream watch for a collector.

GTG: Stands for Get-Together - the meeting where all the watch family gathers to make photos and talk about watches.

Helium Escape Valve (HEV): A feature in diving watches to release helium during decompression.

Hesalite: Acrylic crystal used in vintage watches, known for its vintage aesthetic.

Hulk: Rolex Submariner with a green dial and bezel.

Indie: Also called “Microbrand” - refers to independent watchmakers or brands—smaller, artisanal creators known for unique designs and craftsmanship.

Ingy: IWC Ingenieur.

In the Wild: A watch found in its natural, unaltered state.

JDM: Japanese Domestic Market watches, often exclusive models.

Jelly Bean: A colorful, playful watch design.

Jumbo: Usually a term that sticked to Audemars Piguet Royal Oak with time only indication and relatively large case size.

Jumping Hours: A complication where the hour numeral changes instantly.

Killy: Rolex Dato-Compax chronograph, named after skier Jean-Claude Killy.

KISS Principle: "Keep It Simple, Stupid," emphasizing simplicity in watch design.

Keeper: A watch that you’d never sell or trade, you’ll just keep it for eternity.

Kermit: Rolex Submariner with a green bezel and black dial.

Lollipop: A second hand with a circular tip, resembling a lollipop.

Long E: Rolex Submariner or Explorer II with an elongated "E" in Rolex.

Lug-to-Lug: The measurement from one lug to the other on a watch case.

Lume: Luminescent material on watch hands and markers.

Mickey: A vintage Rolex Submariner with a prominent coronet logo, resembling Mickey Mouse.

Microbrand: Also be referred as ‘Indie brand’. A much smaller, independent watch company making their timepieces in a more ‘artisanal’ way with very limited timepieces produced annually. Examples such as Akrivia, Atelier de Chronometrie, Kari Voutilainen, Groenefeld.

Military Grind: A modification to a watch to resemble military-issued models.

Military Issued: A watch specifically issued to military personnel.

MILSUB: Military Submariner, a Rolex Submariner issued to military personnel.

Monster: Seiko Monster, a distinctive dive watch.

Multichron: Vintage chronograph by Gallet.

NATO Strap: A one-piece fabric strap passed through spring bars, originally developed for military use.

NOS: New Old Stock, a watch that has never been sold or worn.

NWA: Acronym meaning "New Watch Alert". Usually your favourite hastag when you can finally present the new watch on social media, often via a wrist shot.

Open Heart: A dial with an opening to showcase part of the movement.

Oyster: A term commonly used in reference to Rolex watches with water-resistant cases.

Panda: A watch with a white dial and black sub-dials.

Paneristi: Collectors of Panerai watches.

Patina: The aging or discoloration on a watch dial or hands.

Past10: 10past10 / 8past10 - the most photogenic set of watch hands, the so called “watch smile”.

Pepsi: Rolex GMT-Master II with a blue and red bezel.

Pilot Watch: A watch designed for aviators, often featuring large, legible dials.

Pump Pushers: Round pushers on a chronograph reminiscent of a pump.

Quarter Repeater: A complication that chimes the hours and quarters.

Radiation Symbol: A symbol on watch dials indicating the use of radioactive material for luminescence.

Railroad Dial: A dial with highly legible, clear markers for accurate timekeeping.

Rally Strap: A racing-inspired watch strap.

Red Sub: Vintage Rolex Submariner with a red "Submariner" text.

Rehaut: The area between the dial and the crystal on a watch.

Reissue: A modern version of a vintage watch.

Root Beer: Rolex GMT-Master with a brown and gold bezel.

Safe Queen: A watch kept in pristine condition and rarely worn.

Salmon Dial: A dial with a warm, pinkish hue.

Sarb: Seiko Alpinist models.

Sapphire Sandwich: A watch with a sapphire crystal on both the front and back.

Shoes: A slang term for a watch strap.

Speedy: Omega Speedmaster.

Service Dial: A replacement dial installed during a watch service.

Sexpile: A must have event at any GTG. Where all the enthusiasts are putting their watches on the same table and it’s a time for taking a photos of this pile.

SMP: Seamaster Professional, a series of dive watches by Omega.

Smurf: Rolex Submariner with a blue ceramic bezel.

SOTG: Acronym meaning "State Of The Collection," usually accompanied by a photo of one's entire watch collection.

Spider Dial: A dial with a web-like pattern, often found on vintage watches.

Sputnik: Omega Constellation with a star-shaped logo.

Stealth Watch: A low-profile or under-the-radar timepiece.

SubC: Rolex Submariner Ceramic, referring to models with ceramic bezels.

Super Compressor: A type of dive watch case design known for its water-resistance.

Tachymerite: Omega Speedmaster with a tachymeter scale.

TinTin: Omega Speedmaster with a red and white dial.

Tonneau: A barrel-shaped watch case.

Tourby: A slang nickname for tourbillon complication.

Tritium: Radioactive material used in vintage watch lume.

Tritium Burn: Fading or discoloration on a watch dial due to aging of tritium lume.

Tool Watch: A robust and functional watch designed for specific tasks.

Top Gun: IWC Pilot's Watch Top Gun collection.

Tourneau: Slang for a large, oversized watch.

Tropical Dial: A dial that has aged to a brownish color due to exposure.

Turtle: A nickname for Seiko's Prospex cushion-cased dive watches.

Tutti Frutti: Rolex Day-Date with a colorful, gem-set dial.

Tuxedo: Rolex Datejust or GMT-Master with a black and white dial.

Twin Six: Rolex Datejust with two lines of six diamonds.

Ultraman: Vintage Seiko Speedtimer with orange accents.

Under the Radar: Refers to watches that are not well-known but offer exceptional value.

Unpolished: A watch case that has not been polished, maintaining its original finish.

Vampire: Rolex GMT-Master II with a black and red bezel.

Vic-tooth: The vintage Omega Speedmaster with a stepped dial resembling a row of teeth.

Vintage: A watch that is at least 20 years old.

Wabi-Sabi: Embracing the beauty of imperfection in a watch.

Waffle Crystal: A vintage Seiko dive watch crystal with a textured pattern.

Waffle Dial: A dial with a textured, waffle-like pattern.

Watch Roll: A portable storage solution for multiple watches.

WIS: Watch Idiot Savant, a term for passionate watch enthusiasts.

Wrist Candy: Wrist Candy refers to a particularly attractive or desirable watch that one proudly wears on their wrist.

X-33: Omega Speedmaster Professional X-33, designed for astronauts.

Xeric X-Mark: A distinctive hour marker design used by the brand Xeric.

X-Factor: A watch with a unique and distinctive design.

X-Serial: A vintage Rolex reference number indicating a production date in the early 1970s.

Yacht-Master: A Rolex watch designed for yacht enthusiasts.

Yobokies Mod: Watches modified by Yobokies, a well-known modder.

Yogurt: Omega Speedmaster Professional with a white dial.

Young Timer: Vintage watches with a youthful and dynamic vibe.

Yours: A personalized or customized watch with sentimental value.

Yuki Dial: Seiko watches with a dial made by Yuki, known for its vintage style.

Yard-O-Led: A vintage Rolex Day-Date with an intricate, "full" bracelet.

Zen Watch: A timepiece that embodies a Zen-like simplicity and balance.

ZIfferblatt: The German term for watch dial.

ZRC: Zodiac Sea Wolf ZRC, a vintage dive watch.

Zulu Time: Coordinated Universal Time (UTC), often used in aviation watches.