Specifications
- Reference
- 1LTAT.F01A.N001U
- Family
- Longitude
- Category
- Classic
- Status
- Current
- Case material
- Titanium
- Case diameter
- 42.5 mm
- Case thickness
- 12.25 mm Official
- Lug-to-lug
- —
- Lug width
- —
- Water resistance
- 100 m
- Bezel
- —
- Calibre
- A&S6302 Official
- Power reserve
- 60 h
- Frequency
- 28,800 vph (4 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 |
|---|---|---|---|
| 12.25 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.
Other Arnold & Son models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Time Pyramid 42.5 1TPER.F01A.C1250A | 42.5 mm | 10.72 mm | — | A&S1615 |
| DSTB 42 1ATCR.F01A.C1242A | 42 mm | 12.95 mm | — | A&S6203 |
| 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 | — | — |
| 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 |
Show 14 more
| 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 41.5 (steel) 1GLBS.M01A.C1242S | 41.5 mm | 11.3 mm | — | A&S1512 |
| 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 |
| Luna Magna 1LMAS.T01A.C1322D | 44 mm | 15.9 mm | — | A&S1021 |
| Nebula 40 1NEGS.B01A.S135D | 40 mm | 9.1 mm | — | A&S5201 |
| HM London Skyline 1LCDS.M03A.C0704S | 39.5 mm | 7.82 mm | — | A&S1001 |
| Nebula 38 1NECS.B03A.C180A | 38 mm | 8.73 mm | — | A&S5201 |
| Perpetual Moon 38 1GLBR.A01A.C282A | 38 mm | 10.44 mm | — | A&S1612 |
| Globetrotter 42 1WTBS.F01A.C1242S | 42 mm | 15.1 mm | — | — |
| Globetrotter 45 1WTAS.S02C.C155S | 45 mm | 17.26 mm | — | A&S6022 |