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; 14.1 mm; Not known
Lug to lug: Not known; 49.4 mm; Not known
Lug width (differs): 22 mm; 22 mm; 21 mm
Material (differs): 18k yellow gold; Stainless steel; 18k yellow gold
Bezel: Bidirectional rotating; Bidirectional rotating; Bidirectional rotating
Bezel insert: Not known; Not known; Cerachrom ceramic, Black
Caseback (differs): Screw-down; Solid; Screw-down
Crystal (differs): Sapphire; Sapphire, Anti-reflective on both sides; Sapphire
Cyclops: Yes; Not known; Yes
Crown: Screw-down; Screw-down; Screw-down
Water resistance: 100 m; 100 m; 100 m
Weight: Not known; 164 g; Not known

Calibre (differs): Rolex 9002; Longines L844.4; Rolex 3235
Type: Automatic; Automatic; Automatic
Origin: In-house; Not known; In-house
Power reserve (differs): 80 h; 72 h; 70 h
Frequency (differs): 28,800 vph (4 Hz); 25,200 vph (3.5 Hz); 28,800 vph (4 Hz)
Jewels (differs): 40; 21; 31
Certification (differs): Superlative Chronometer; COSC; Superlative Chronometer
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; Hours, minutes, seconds and date. 24 hours hand with time zone mechanism; Centre hour, minute and seconds hands
Instantaneous date with rapid setting
Stop-seconds for precise time setting
Complications (differs): Annual calendar
Central seconds
Date
GMT / second time zone
Hacking (stop) seconds
Month; Date
GMT / second time zone; Central seconds
Date
Hacking (stop) seconds

The watches side by side