Seiko Presage Cocktail 40.5 MM Automatic SS Blue Dial Watch SSA405J1

Movement

Caliber Number: 4R38

Movement Type: Automatic with manual winding

Power reserve: Approx. 41 hours

Jewels: 24

Stop seconds hand function

Case Material: Stainless steel

Case Size

Thickness:11.8mm 

Diameter:40.5mm 

Lug-to-lug:47.5mm

Crystal: Box-shaped Hardlex

Band Material: Calfskin

Clasp: Three-fold clasp with push button release

Distance between lugs: 20

Water Resistance: 5 bar

Weight: 70.0

See-through & Screw case back