Nixie tube style watch face: four glowing glass tubes show the time, set in an engraved brass instrument panel. Inspired by Soviet IN-14 and IN-13 tubes. WHAT YOU SEE • Four photorealistic glass tubes with an orange glowing digit, the unlit cathodes behind it and the anode mesh in front. • A horizontal IN-13 bar tube: its glowing column shows your Body Battery from 0 to 100. • Engraved brass plates with the date, weather and heart rate at the top and steps and battery at the bottom. • A copper bezel ring with minute marks and a GRATICULE name plate. • In 12-hour format the first tube stays dark before 10 o'clock, like on a real tube clock. MAKE IT YOURS • Five data fields take any of 38 data types, or nothing, including heart rate, steps, distance, calories, altitude, barometer, temperature, weather, sunrise and sunset, recovery time, VO2 max, training status, race predictor, respiration, notifications and the next calendar event. • The IN-13 tube takes any value with a 0–100 scale: Body Battery, step goal, stress, battery, sleep score, blood oxygen or weekly intensity minutes. • Settings on the watch and in the Connect IQ app on your phone. Units and the 12/24-hour format follow your watch. Menu languages: English, Polish, German. BUILT FOR REAL USE • Missing data shows "--", never a misleading zero; the IN-13 tube stays dark. • Always-on display on AMOLED watches: the digits turn into thin glowing wires on black and shift a few pixels every minute. On MIP watches the full face stays visible. • Some data types (such as sleep score, recovery time, VO2 max or training status) come from newer watches only; on older models they show "--". • Made for round watches with Connect IQ 4 or newer (65 models). Not available for fenix 6 Pro, MARQ 1st generation and Descent Mk2. TRY IT FREE "Graticule Tube Trial" (free) shows the same face with the default fields, without settings. PRIVACY The last known location is stored only on your watch, to calculate sunrise and sunset for the sun fields. The face has no internet permission and sends no data anywhere. Privacy policy: https://graticule-watchfaces.netlify.app/privacy.html MORE FROM GRATICULE Metric, Metric X (for Venu X1), Chrono Sport, Tactical Ops, Tactical Field, Tactical Mono (for Instinct), Hybrid and Analog. SUPPORT AND FEEDBACK Something looks wrong on your watch? Write to [email protected] with your watch model and we will fix it. If you like the face, a rating in the Connect IQ store helps a small studio a lot. RETURNS You can return the watch face within 48 hours of purchase, according to the Connect IQ store rules. Fonts: Barlow Semi Condensed and Jost (SIL Open Font License 1.1).

1.0.0 First release.