Side by side

Differs

Longines Spirit Zulu TimeL3.812.4.50

Shape: Round; Round; Round
Diameter: 42 mm; 42 mm; 42 mm
Thickness: 14.1 mm; Not known; 14.1 mm
Lug to lug: Not known; Not known; 49.4 mm
Lug width (differs): 22 mm; 21 mm; 22 mm
Material (differs): Rolesor (steel and gold); Titanium; Stainless steel
Bezel: Bidirectional rotating; Bidirectional rotating; Bidirectional rotating
Bezel insert: Not known; Cerachrom ceramic, Black; Not known
Caseback (differs): Screw-down; Screw-down; Solid
Crystal (differs): Sapphire; Sapphire; Sapphire, Anti-reflective on both sides
Cyclops: Yes; Yes; Not known
Crown: Screw-down; Screw-down; Screw-down
Water resistance: 100 m; 100 m; 100 m
Weight: Not known; Not known; 164 g

Calibre (differs): Rolex 9002; Rolex 3235; Longines L844.4
Type: Automatic; Automatic; Automatic
Origin: In-house; In-house; Not known
Power reserve (differs): 80 h; 70 h; 72 h
Frequency (differs): 28,800 vph (4 Hz); 28,800 vph (4 Hz); 25,200 vph (3.5 Hz)
Jewels (differs): 40; 31; 21
Certification (differs): Superlative Chronometer; Superlative Chronometer; COSC
Functions (differs): Centre hour, minute and seconds hands
24-hour display on off-centre disc
Second time zone
Instantaneous annual calendar at 3 o'clock and rapid-setting of the date
Month display via 12 apertures around the circumference of the dial
Stop-seconds for precise time setting; Centre hour, minute and seconds hands
Instantaneous date with rapid setting
Stop-seconds for precise time setting; Hours, minutes, seconds and date. 24 hours hand with time zone mechanism
Complications (differs): Annual calendar
Central seconds
Date
GMT / second time zone
Hacking (stop) seconds
Month; Central seconds
Date
Hacking (stop) seconds; Date
GMT / second time zone

The watches side by side