Specifications
- Reference
- R27077102
- Family
- True Square
- Category
- Classic
- Status
- Current
- Case material
- Ceramic
- Case diameter
- 38 mm
- Case thickness
- 9.7 mm Official
- Lug-to-lug
- —
- Lug width
- —
- Water resistance
- —
- Bezel
- —
- Calibre
- R763 Official
- Power reserve
- up to 80 h
Official product page · retrieved October 18, 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 |
|---|---|---|---|
| 9.7 mm | Official | Rado | October 18, 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 Rado · retrieved October 18, 2026
Other True Square references
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| True Square Automatic (9.6 mm thick) R27078172 | 38 mm | 9.6 mm | — | R763 |
| True Square Automatic Open Heart R27073012 | 38 mm | 9.7 mm | — | R734 |
| True Square Automatic Skeleton R27177255 | 38 mm | 9.7 mm | — | R808 |
| True Square Thinline R27047902 | 37 mm | 5 mm | — | R420 |
| True Square R27072012 | 29.2 mm | 8.1 mm | — | R079 |
Other Rado models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| True Square Undigital R27075152 | 38 mm | 9.6 mm | — | R763 |
| True Square x Ash Barty Limited Edition R27123905 | 38 mm | 9.7 mm | — | R734 |
| True Square X Kunihiko Morinaga Special Edition R27086172 | 38 mm | 9.7 mm | — | R734 |
| DiaStar Original (38 mm) R12161313 | 38 mm | 12.1 mm | — | R764 |
| DiaStar Original 60-Year Anniversary Edition R12163118 | 38 mm | 12.3 mm | — | R764 |
| DiaStar Original Automatic (38 mm) R12160103 | 38 mm | 12.1 mm | — | R764 |