Seiko Prospex Alpinist GMT Automatic – 39.5 mm

Reference Number
HBC007J1

TECHNICAL SPECIFICATIONS

Calibre
Calibre no.: 6R54
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)
Case Size:
– Thickness: 13.6 mm
– Diameter: 39.5 mm
– Lug to lug: 46.4 mm
Crystal: Curved sapphire crystal
Band Material: Cow leather
Clasp: Three-fold clasp with push button release
LumiBrite: Lumibrite on hands and index(es)

Layout
Water Resistance: 200m

Other Specifications
– Rotating compass inner ring
– Screw-down crown
– See-through & Screw case back

Other Features
– Jewels: 24
– 24-hour hand (dual time display function)
– Stop second hand function