Seiko Prospex Speedtimer Automatic – 39.5 mm

Reference Number
SPB513J1

TECHNICAL SPECIFICATIONS

MOVEMENT
Calibre no.: 6R55
Movement Type: Automatic with manual winding
Accuracy: +25 to -15 seconds per day
Power Reserve/Battery Life: Approx. 72 hours (3 days)

CASE
Case Material: Stainless steel (super hard coating)
Clasp: Three-fold clasp with push button release
Band Material: Stainless steel
Crystal: Curved sapphire crystal
Case Size:
– Thickness: 12.0mm
– Diameter: 39.5mm
– Lug to lug: 44.5mm

LAYOUT
Water Resistance: 20 bar
Weight: 154.0 g

Other Specifications:
– Stop second hand function:
– Jewels: 24
– Screw case back