*** SUMO ***
Calibre:6R15 23J Automatic Hack function & Hand winding
Accuracy: +25/-15 sec per day
Power reserve: 50 hours
Material: Stainless Steel
Diameter: 45 mm (without the crown)
Thickness: 13.3 mm
Crown: Screw-down crown
Weight : 185grams
SS case/SS Solid bracelet
200 Water resist
Hardlex glass
Antimag
*** ATLAS ***
Calibre 7S36 automatic 23 jewel movement
Stainless Steel case with non-solid end lugs
42mm case diameter
50mm including both crowns
40mm bezel diameter
15mm thick
49mm tip of lug at 12 position to tip of lug at 6 position
SS bracelet with three fold push button release clasp engraved with the word “Seiko”.
3.5mm thick bracelet, 22mm wide narrowing to 18mm at clasp
Weight of 154grams with three bracelet links removed.
Automatic winding. Non hacking. Non hand-winding
Day/Date at 3 position
Flat mineral Glass Hardex Crystal – 31mm diameter
Solid Screw-down case back
Water resistant 200 metres
Luminescent hour, minute, seconds and indices
Uni-directional rotating bezel