The Urban Jürgensen Reference 1741 uses their P4 caliber as base movement; a perpetual calendar with leap year and moon phase is added
Urban Jürgensen caliber P4 | Hand-wound | Diameter: 32 mm | Thickness: 5.20 mm | Frequency: 21,600 vph (3 Hz) | Jewels: 23 | Hours, minutes, small seconds | Power reserve: 72 hours
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Watches with the Urban Jürgensen caliber P4
The Urban Jürgensen reference 1140L RG Brown looks subtle and has a very delicate dial and hands with extremely high finish