The Seiko SPB087J1 Prospex has a power reserve of 50 hours, sapphire crystal, a water resistance of 200 meters and a screw down crown.

Specifications

Movement

Calibre Number
6R15

Movement Type
Automatic with manual winding

Precision
+25 to -15 seconds per day

Power reserve
Approx. 50 hours

Jewels
23

Functions

• Stop second hand function
• Date display

Case/Band

Case Material
Stainless steel (super hard coating) with stainless steel bezel

Case Size

• Thickness: 12.7mm
• Diameter: 44.0mm

Crystal
Sapphire crystal

Crystal Coating
Anti-reflective coating on inner surface

LumiBrite
LumiBrite on hands and index(es)

Band Material
Silicone

Distance between lugs
20

Other Details

Water Resistance
200m / 660ft diver's

Weight
117.0

Features

• Unidirectional rotating bezel
• Screw-down crown
• Screw case back