Arnold & Son · Perpetual
Arnold & Son Perpetual Moon 41.5 (steel)
Reference 1GLBS.M01A.C1242S · Classic · 41.5 mm
Specifications
- Reference
- 1GLBS.M01A.C1242S
- Family
- Perpetual
- Category
- Classic
- Status
- Current
- Case material
- Stainless steel
- Case diameter
- 41.5 mm
- Case thickness
- 11.3 mm Official
- Lug-to-lug
- —
- Lug width
- —
- Water resistance
- 30 m
- Bezel
- —
- Calibre
- A&S1512 Official
- Power reserve
- 90 h
- Frequency
- 21,600 vph (3 Hz)
Official product page · retrieved October 24, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
No lug-to-lug figure exists for this reference yet, so fit cannot be computed.
Measurements and sources
Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.
Case thickness
| Value | Type | Source | Date |
|---|---|---|---|
| 11.3 mm | Official | Arnold & Son | October 24, 2026 |
Lug-to-lug
No source gave this figure yet.
Lug width
Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.
No source gave this figure yet.
Calibre source
Official Arnold & Son · retrieved October 24, 2026
Other versions in the same case
These references differ only by dial, bracelet or bezel colour. The brand gives them the same case dimensions, so the figures on this page apply to them too.
- 1GLBS.M02A.C672S · “Colors of the Moon” Black
- 1GLBS.M03A.C263S · “Colors of the Moon” Blue
Other Perpetual references
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Perpetual Moon 41.5 1GLBX.Z03A.C1479X | 41.5 mm | 11.67 mm | — | A&S1512 |
| Perpetual Moon 41.5 (platinum, 11.3 mm thick) 1GLBX.F01A.C285X | 41.5 mm | 11.3 mm | — | A&S1512 |
| Perpetual Moon 41.5 (red gold, 11.3 mm thick) 1GLBR.N01A.C0246A | 41.5 mm | 11.3 mm | — | A&S1512 |
| Perpetual Moon 38 1GLBR.A01A.C282A | 38 mm | 10.44 mm | — | A&S1612 |
Other Arnold & Son models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Constant Force Tourbillon 11 1FCBX.Z01A.C0232X | 41.5 mm | 13.7 mm | — | A&S5219 |
| Nebula 41.5 1NEAR.S01B.C179A | 41.5 mm | 8.73 mm | — | A&S5201 |
| Ultrathin Tourbillon (platinum) 1UTBX.F01A.C208A | 41.5 mm | 8.3 mm | — | — |
| Ultrathin Tourbillon (red gold, 41.5 mm) 1UTBR.I01A.C246R | 41.5 mm | 8.3 mm | — | A&S8300 |
| Ultrathin Tourbillon Skeleton 1UTBR.Z01A.C246R | 41.5 mm | 8.4 mm | — | A&S8320 |
| DSTB 42 1ATCR.F01A.C1242A | 42 mm | 12.95 mm | — | A&S6203 |
Show 10 more
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| DSTB Stop-Seconds 1ATCR.N01A.C0246A | 42 mm | 12.95 mm | — | A&S6303 |
| Ultrathin Tourbillon (red gold, 42 mm) 1UTAR.Z01A.C156A | 42 mm | 8.6 mm | — | — |
| Nebula 40 1NEGS.B01A.S135D | 40 mm | 9.1 mm | — | A&S5201 |
| Longitude 1LTAT.F01A.N001U | 42.5 mm | 12.25 mm | — | A&S6302 |
| Time Pyramid 42.5 1TPER.F01A.C1250A | 42.5 mm | 10.72 mm | — | A&S1615 |
| HM London Skyline 1LCDS.M03A.C0704S | 39.5 mm | 7.82 mm | — | A&S1001 |
| Luna Magna 1LMAS.T01A.C1322D | 44 mm | 15.9 mm | — | A&S1021 |
| Nebula 38 1NECS.B03A.C180A | 38 mm | 8.73 mm | — | A&S5201 |
| Globetrotter 42 1WTBS.F01A.C1242S | 42 mm | 15.1 mm | — | — |
| Globetrotter 45 1WTAS.S02C.C155S | 45 mm | 17.26 mm | — | A&S6022 |