Seiko Prospex SPB409 Alpinist GMT Limited Edition White

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
Stop seconds hand function
Case/Band
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)
Distance between lugs
20
Other Details
Water Resistance
20 bar
Weight
156.0
Features
LIMITED EDITION on the case back
Screw-down crown
See-through & Screw case back
* In an actual product, the case back direction might be different from the photograph.