Seiko Prospex Mechanical GMT
Caliber Number: 6R54
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 72 hours (3 days)
Jewels: 24
Functions:
24-hour hand (dual time display function)
Stop seconds hand function
Case Material: Stainless steel (super hard coating)
Case Size:
Thickness:13.6mm
Diameter:39.5mm
Lug-to-lug:46.4mm
Crystal: Curved: sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands and index(es)
Band Material: Cow Steer
Clasp: Three-fold clasp with push button release
Distance between lugs: 20mm
Item Number: SPB379