Side by side

Differs

Longines Spirit FlybackL3.821.4.93

Shape: Round; Round; Round
Diameter (differs): 43 mm; 43 mm; 42 mm
Thickness (differs): 13.97 mm; 13.2 mm; 17 mm
Lug to lug: Not known; Not known; 49.5 mm
Lug width (differs): 23 mm; 22 mm; 22 mm
Material (differs): Stainless steel; Carbon; Stainless steel
Finish: Not known; Matt finish; Not known
Bezel (differs): Bidirectional rotating; Fixed; Bidirectional rotating
Caseback (differs): Display (sapphire); Solid; Display (sapphire)
Crystal (differs): Sapphire, Domed, Anti-reflective on both sides; Sapphire, Domed; Sapphire, Anti-reflective on both sides
Crown: Screw-down; Screw-down; Screw-down
Water resistance: 100 m; 100 m; 100 m
Weight: Not known; Not known; 127.4 g

Calibre (differs): Breitling 01; Tudor MT5813; Longines L791.4
Type: Automatic; Automatic; Automatic
Origin: In-house; In-house; Not known
Power reserve (differs): 70 h; 70 h; 68 h
Frequency: 28,800 vph (4 Hz); 28,800 vph (4 Hz); 28,800 vph (4 Hz)
Jewels (differs): 47; 41; 28
Certification: Not known; COSC; COSC
Functions (differs): 1/4th second, 30 minutes, 12 hours
Dial aperture; Chrono
Date; Hours, minutes, small seconds at 9 o'clock
Chronograph mechanism: central 60 seconds hand and 30 minutes counter at 3 o'clock
Complications (differs): Chronograph
Date
Small seconds; Chronograph
Date
Small seconds; Chronograph
Flyback chronograph
Small seconds

The watches side by side