Seiko Presage Prestige Line Sharp Edge Series Automatic GMT Black SPB221 (SARF005)

Seiko Presage Prestige Line Sharp Edge Series Automatic GMT Black-Dial

SPB 221J1
(SARF 005)

Movement 
Caliber: 6R64
Movement Type: Automatic with mechanical self-winding (with manual winding)
Accuracy: Day difference +25 seconds to -15 seconds
Power Reserve: Approx 45 hours at maximum

Exterior
Case Material: Stainless Steel with diamond shield
Case size: Thickness 13.7mm, Diameter 42.2mm 
Crystal: sapphire
Crystal Coating: Anti-reflective coating on inner surface
Lumibright:  Yes (needle / index)
Dial: Black
Clasp: Three-fold clasp with push button release

Other Details 
Water resistance: 10 Bar 
Magnetic resistance: Yes
See-through back
Screw back (For manufacturing reasons, there are individual differences in the orientation of the back lid)
With 24-hour hand
Calendar interlocking time difference correction function
Power reserve display function
With date hand
Second hand stop function
29 Jewels