SNKM87K1

Caliber Number / Movement
7S26 (automatic)

Power Reserve / Accuracy
Approximately 41 hours (-20 to +49 seconds per day)

Crystal
Hardlex crystal

LumiBrite
Lumibrite on hands and indexes

Case & Band Material
Stainless steel case with metal band (three-fold clasp)

Water Resistance
50m

Case Size
Thickness: 12.2 mm
Diameter: 43.6 mm
Length: 51.0 mm

Other Specifications
See-through back case
Screw case back
21 jewels
Day and date display