Seiko Presage Sharp Edge GMT SPB221J1 SPB221 Black Dial

Caliber Number
6R64

Movement Type
Automatic with manual winding

Accuracy
+25 to -15 seconds per day

Duration
Approx. 45 hours

Exterior
Case Material
Stainless steel (super hard coating)

Crystal
Sapphire crystal

Crystal Coating
Anti-reflective coating on inner surface

LumiBrite
Lumibrite on hands and indexes

Clasp
Three-fold clasp with push button release

Other Details
Water Resistance
10 bar

Case Size
Thickness: 13.7 ㎜
Diameter: 42.2 ㎜
Length: 49.2 ㎜
Weight
181.0 g
Other Specifications
Screw case back
See-through case back
Other Features
24-hour hand
29 jewels
Calendar-linked time difference adjustment function
Date hand
Power reserve display
Stop second hand function