Omega Calibre 1365 Quartz Movement
Omega calibre 1365 is an ultra thin two hand quartz movement introduced in 1980. Omega’s historical nomenclature records it as the Criquet: a 19.40 mm, 9 jewel, 32,768 Hz calibre only 1.90 mm high, designed around electronic push button correction and used in slender De Ville watches.
The specified modern cell is a 1.55 V low drain silver oxide 364 / SR621SW, approximately 6.8 mm × 2.15 mm. Omega’s original technical material used the 9911 battery family designation. A 321 / SR616SW is the same approximate diameter but is thinner and is not the specified battery.

Omega 1365 technical specifications
| Year | 1980 |
| Historical name | Criquet |
| Diameter | 19.40 mm |
| Movement height | 1.90 mm |
| Height on battery | 2.60 mm |
| Jewels | 9 |
| Quartz frequency | 32,768 Hz |
| Display | Hours and minutes |
| Setting | Electronic correction by recessed push button |
| Battery | 364 / SR621SW |
| Original average consumption | 0.45 µA |
| Original maximum consumption | 0.60 µA |
| Minimum functioning voltage | ≤ 1.20 V |
| Original stated running time | Average approximately 2 years |
| Historical production record | 596,000 pieces |
Does Omega 1365 have an ETA equivalent?
No direct ETA equivalent is confirmed in Omega’s calibre nomenclature. Omega explicitly names ETA bases for many other quartz calibres, but records the 1365 as an Omega calibre without an ETA number. It should therefore be sourced and identified as Omega 1365 unless a specific component interchange is independently verified.
Design, history and identification
The 1365 is notable for its extremely thin 1.90 mm architecture. Omega describes it historically as the Criquet ultraplat à poussoir, or ultra thin push button calibre, and associates it with De Ville. Omega’s nomenclature records approximately 596,000 pieces. Because several quartz De Ville cases look similar externally, the calibre should be confirmed from the movement itself or model specific documentation rather than inferred from the case alone.
Omega factory service reference
Omega factory spare parts and service reference for calibre 1365. This is a parts and service sheet rather than a full overhaul manual.
Open Omega 1365 parts & service sheet↗FAQ
364 / SR621SW, 1.55 V low drain silver oxide.
No. The 321 / SR616SW is thinner and is not the specified cell.
Electronically through a recessed case push button rather than a conventional crown setting system.
No direct ETA base is identified by Omega for calibre 1365.
Battery, dimensions and electrical data are drawn from Omega technical material and later Omega workshop references; historical nomenclature data is identified separately. No ETA relationship is inferred where Omega does not document one.