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Differs

Grand Seiko SportSBGJ277

Shape: Round; Not known; Not known
Diameter (differs): 44 mm; 44.2 mm; 44 mm
Thickness (differs): 15.65 mm; 14.4 mm; 12.8 mm
Lug to lug (differs): Not known; 50.6 mm; 48 mm
Lug width (differs): 22 mm; 21 mm; 20 mm
Material: Stainless steel; Stainless steel; Stainless steel
Bezel: Unidirectional rotating; Not known; Unidirectional rotating
Caseback: Screw-down; Screw-down; Screw-down
Crystal (differs): Sapphire, Domed, Anti-reflective on both sides; Sapphire, Domed, Anti-reflective inside; Sapphire
Crown: Screw-down; Screw-down; Screw-down
Water resistance: 200 m; 200 m; 200 m
Antimagnetic: Not known; 60 gauss; Not known
Weight: Not known; 188 g; Not known

Calibre (differs): Breitling 13; Grand Seiko 9S86; Not known
Type: Automatic; Automatic; Automatic
Origin: Not known; In-house; Not known
Power reserve (differs): 48 h; 55 h; 38 h
Frequency (differs): 28,800 vph (4 Hz); 36,000 vph (5 Hz); 28,800 vph (4 Hz)
Jewels (differs): 25; 37; Not known
Functions (differs): 1/4th second, 30 minutes, 12 hours
Dial aperture; Rotating bezel (24-hour display)
Screw-down crown
37 jewels
24-hour hand (dual time display function)
Calendar-linked time difference adjustment function; Hours, minutes, seconds
Date
Complications (differs): Chronograph
Date
Small seconds; Date
GMT / second time zone; Date

The watches side by side