Dial Sizes: Matching Dial to Case
Author: Funny Items
Release time: 2026-08-25 18:22:43
View number: 20
Dial Sizes Decoded
Dials come in several standard diameters — 28.5mm is most common, but 29.5mm, 30mm and others exist. Matching dial to case is essential; the wrong size simply won't fit.
Common Sizes
| Dial Diameter | Fits |
|---|---|
| 28.5mm | Most 39–41mm Seiko-style cases (SKX007-style, our DJ line) |
| 29.5mm | 40mm Sub-style cases |
| 30mm | 43.5mm large cases |
| 26.3mm | 31mm small cases |
What Happens With the Wrong Size
- Too small: gaps around the edge; chapter ring misalignment
- Too big: won't seat under the rehaut; pressure cracks the dial feet
How to Check Before Buying
- Find your case's dial opening spec (every product listing states it)
- Match the dial diameter exactly
- Confirm date position (3H/4H) matches your movement — see our movement pairing guide
Frequently Asked Questions
Can I trim a dial down?
Technically possible but risky — printing sits near the edge and can chip. Better to buy the right size.
Do all our dials list sizes?
Yes — every listing states diameter and compatible movements. Browse the dial collection.