Pocket Chime · iOS 26 & Apple Watch · Classic × Chuuni

Kaikoku

— Thou Shalt Set the Hour Free —

Time is sealed within a pocket watch. Close the cover, and power fills the magic circle; open it, and the day is set free. Arcana by night, Solar Arts by day, a Seal when closed — a classic, gloriously theatrical arcane alarm, resonating with your Apple Watch as well.

— Touch the cover to open and close · Sweep it, and the hour is sealed · Grip the edge and swing it · Wind the face twelve times, and magic shall manifest —

PLATE I

Two Casings — Gold and Silver

The theme is distributed to every view via the Environment and switches instantly. Even the style of the face, hands, and numerals is crafted distinctly for each casing.

HUNTER · VICTORIAN

Gold — Hunter Case

Deep lapis enamel × gold-accented Roman numerals (IIII notation) · a central crest of crescent moon and eight-pointed star
An engraved case of aged gold (aged brass). A small window for the next alarm at the 6 o'clock position.

Aged Gold #8F7028 Lapis #101838 Gold Accent #D9B45C Moon Gold #F2DC96 tint #A67C2E
RAILROAD GRADE

Silver — Railroad Watch

White face · bold Arabic numerals · baton hands
The second hand is set in red, as is the custom of railroad watches

Steel #9CA3AE White Porcelain #FAFAF7 Iron Black #1A1C22 Red #B02E2E tint #44546A
PLATE II

Setting the Time by Hand

No DatePicker is used. In place of the gesture of winding the crown, you drag the hands of the face itself to decide the ringing time. The face below can actually be dragged.

AM7:30

  • Angle-to-Time Conversion — drag coordinates are converted to an angle with atan2, then quantized in steps of 6° for the minute hand and 30° for the hour hand (implemented as a pure function, ClockAngleMath, and covered by tests).
  • Linkage — turning the minute hand makes the hour hand follow at 0.5°/minute. Crossing the 0-minute mark advances or reverts the hour (determined by a crossing from 45 to 15 minutes).
  • Haptics.sensoryFeedback(.selection) fires at every 1-minute step, returning the click of gears to your finger.
  • Selected Hand — a brass-colored ring (knob) is shown at the tip of the hand, indicating which one is being operated.
  • Confirmation — saved via the "Set to This Time" plate, converted into AlarmKit's Alarm.Schedule.relative.
PLATE III

The Murk of Time — Twilight and Dawn

The deeper the night, the more the face clouds into violet-indigo, like a vessel for the soul. At dawn, the murk is purified by light. At sunset, the season's constellation rises and glows upon the face. Try the slider below to move through a day.

21:00Evening

  • Murk — from 16:00 into the evening, violet-indigo dregs fill from the edge of the face, reaching their peak between 23:00 and 4:00. Through a multi-layer gradient in multiply blend, the ivory ground sinks like the "bottom of a vessel."
  • Purification of Dawn — between 4:00 and 6:00, light from above (screen blend) dissolves the dregs. The hero watch lives this cycle at all times, synced to the actual time.
  • Seasonal Constellation — at sunset (±2 hours), the season's constellation rises in gold. Spring = Leo / Summer = Scorpius / Autumn = Cassiopeia / Winter = Orion. It lingers faintly through the night.
  • SwiftUI Implementation — the time coefficient is computed with TimelineView(.everyMinute), and reflected in the Canvas's multiply/screen rendering and the constellation path's opacity.
PLATE IV

The Cover of the Twelve Houses — A Constellation Crest for Every Month

Deep lapis enamel is set into the center of the cover, and with each new month, that month's house (constellation) is re-engraved in gold — accompanied by a crescent moon and its traditional Japanese month name. The hero watch's cover bears the crest of the present month.

The Turning Houses — · The stars have depth and keep turning through space. Stroke them, and momentum carries them on.

The design tone follows the antique pocket watch's "lapis enamel × aged gold" (reference: design-refs/ref-watch.jpg). The constellation lines are a stylized, simplified form. In SwiftUI, the crest for each month is chosen with Calendar.current.component(.month) and rendered onto the Canvas in gold accent.

PLATE V

Arcana — Mysteries of the Twelve Houses

Stroke the face in a circle, and wind it twelve times, and the art manifests. By night, Arcana (12 kinds, one per house); by day, Solar Arts (6 kinds); with the cover closed, Seals (6 kinds) — 24 kinds across three systems on the actual device. This page's demonstration lets you try seven representative examples.

Magic for when the cover is open

Magic for when the cover is closed (Seals, on the actual device)

The Ringing Hour (when the alarm bell sounds)

When the hour arrives, the whole screen flickers with gold, and the magic circle unfolds bearing the inscription, "The hour hath come."

  • Winding Detection — tracks the cumulative rotation angle about the center of the face; every 2π is one winding. The magic circle's diamonds light up. Leave it for 4 seconds, and the winding dissipates.
  • Purge of Dawn's Light — Purifies the murk with light. The face is forced into its dawn state, and a burst of gold runs through.
  • Storm of Constellations — The season's constellation blazes up, and its stars scatter from the watch.
  • Rewinding of Time — The hands race backward at speed, and the magic circle spins in reverse.
  • Barrier of Violet Lightning — A violet-indigo flash and shockwave. The magic circle turns violet.
  • Crimson Blaze — Embers rise through 3D space around the watch (perspective-projected particles, with flicker).
  • Whirl of Blue Waves — Ripples spread underfoot, and spray arcs as it is drawn by gravity.
  • Ring of the Gale — Streams of wind circle around the watch, fore and aft, and its pressure sets the watch swaying.
  • SwiftUI Implementation — rotation detection accumulates atan2 (added to ClockAngleMath); magic is unified under the protocol SpellEffect, with slot settings stored in UserDefaults. When ringing, AlarmKit's alerting state is detected, triggering the grand effect via fullScreenCover.
PLATE VI

Screen Composition

The Home screen is always the watch. The list, editor, and timer are built as working surfaces on the cover's inner face, engraved plates set upon the same felt ground.

Thou Shalt Set the Hour Free

Next Alarm — Tomorrow 7:30 AM

Alarm Bell Timer

Long-press to switch theme

Home (RootView)

Alarm Bell

AM7:30

Weekdays · Snooze 9 min

AM9:00

Weekends

PM10:15

Once only

+ New Alarm

List (AlarmListView)

Set the Time

AM7:30

SunMonTueWedThuFriSat

Label — "Morning Tea" · Snooze 9 min

Set to This Time

Edit (AlarmEditorView)

Timer

4:23REMAINING
1 min 3 min 5 min 10 min
Pause Cancel

Timer (TimerView)

PLATE VII

Live Activity / Dynamic Island

The timer and stopwatch live on in the Lock Screen and the Dynamic Island. With a single brass accent on black, they preserve the presence of the pocket watch even within the system UI.

POCKETCHIME

Tea Timer

4:23

Lock Screen — driven by Text(timerInterval:)

4:23

Dynamic Island (compact) — watch face on the left, remaining time on the right

PLATE VIII

Typography and Color

The typeface is the system serif (New York / Hiragino Mincho). Numerals are set in tabular figures, and Latin labels are given wide letter-spacing, evoking an engraved inscription.

10:09

Time display — serif 56 / light (W3) / tabular-nums

Set the Time

Heading — serif 24 / light (W3) / +10% letter-spacing

Open the cover, and the day begins. Wind the hands, and await the hour.

Body — serif 14 / regular / line-height 1.8

RAILROAD GRADE · EST. 2026

Plaque label — 11 / +32% letter-spacing / brass

Felt ground (background)#24331F → #0B110A
Ink text (body)#EFE6CD
Brass (accent)#C9A24B
Crimson (second hand, warning)#A03A2A
Steel (Silver theme)#AEB6C2
DesignImplementation (per DESIGN.md)
Opening and closing the coverrotation3DEffect(axis:(0,1,0), anchor:.leading) + spring 1.3s
Hand movementDriven continuously with TimelineView(.animation)
Dragging the handsClockAngleMath (a pure atan2 function, covered by unit tests)
SnoozesecondaryButtonBehavior: .countdown + 9-minute postAlert
Remaining-time displayLive Activity via AlarmAttributes<PocketWatchMetadata>
Theme propagationConsistent through to the Widget via tintColor and metadata.themeName
PACT

The Pact of Liberation

Every arcanum is free. This watch is kept lit by a discreet ad, “Farsight tidings” — forge the Pact and the ads are set aside.

Lifetime Pact

¥500

Once, for generations to come. The twelve houses of Arcana, the Solar Arts, the Seals, the Silver casing, the crimson emblem, every bell, and resonance with Apple Watch are all set free.

Monthly Pact

¥100 / month

A pact renewed each month. It may be undone at any time. What it unlocks is the same as the Lifetime Pact.

Invitation Pact

¥380

A special price for the Lifetime Pact, opened only to those who have passed beneath the "invitation glyph" (QR) raised by the magic circle.

An Offering of Incense (a tip) is available too — to keep this watch's flame from dying out.

GET

Get It

Get Get "Kaikoku" on the App Store ↗

iOS 26 or later · Apple Watch (watchOS 26) supported

Every gesture is recorded in the "Grimoire" ↗