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Differs

Grand Seiko SportSBGJ277

Shape: Round; Not known; Round
Diameter (differs): 44 mm; 44.2 mm; 44 mm
Thickness (differs): 14.45 mm; 14.4 mm; 12.17 mm
Lug to lug: Not known; 50.6 mm; Not known
Lug width (differs): 22 mm; 21 mm; 22.05 mm
Material: Stainless steel; Stainless steel; Stainless steel
Bezel: Unidirectional rotating; Not known; Unidirectional rotating
Caseback (differs): Display (sapphire); Screw-down; Display (sapphire)
Crystal (differs): Sapphire, 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 01; Grand Seiko 9S86; Breitling B31
Type: Automatic; Automatic; Automatic
Origin: In-house; In-house; In-house
Power reserve (differs): 70 h; 55 h; 78 h
Frequency (differs): 28,800 vph (4 Hz); 36,000 vph (5 Hz); 28,800 vph (4 Hz)
Jewels (differs): 47; 37; 26
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; Dial aperture
Complications (differs): Chronograph
Date
Small seconds; Date
GMT / second time zone; Date

Type (differs): Metal bracelet; Metal bracelet; Rubber strap
Name (differs): Polished/brushed stainless steel Rouleaux bracelet; Not known; Green mesh rubber strap
Material: Stainless steel; Stainless steel; Not known
Clasp (differs): Not known; Folding clasp; Folding clasp, Stainless steel
Strap colour: Not known; Not known; Green

The watches side by side