The new Caliber 6R54, which has a power reserve of three full days, powers the new Seiko Prospex Alpinist Mechanical GMT.

The 24-hour display on the bezel and the 24-hour hand with red tip guarantee the legibility of the GMT function.

Specifications

Movement
Caliber Number: 6R54
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 72 hours(3 days)
Jewels: 24
Functions:

• 24-hour hand (dual time display function)
• Stop second hand function

Case/Band
Case Material: Stainless steel (super hard coating)
Case Size: Thickness:13.6mm, Diameter:39.5mm, Lug-to-lug:46.4mm
Crystal: Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands and index(es)
Band Material: Cow leather
Clasp: Three-fold clasp with push button release
Distance between lugs: 20

Other Details
Water Resistance: 20 bar
Magnetic Resistance: 4,800 A/m
Features:

• Rotating compass inner ring
• Screw-down crown
• See-through & Screw case back