Seiko Prospex Alpinist Automatic SPB377J1

Seiko Prospex Alpinist Automatic SPB377J1The new Caliber 6R54, which has a power reserve of three full days, powers the new Seiko Prospex Alpinist Mechanical GMT. High legibility 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

• The new Caliber 6R54, which has a power reserve of three full days, powers the new Seiko Prospex Alpinist Mechanical GMT.
• High legibility
• 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 Steer
• Clasp Three-fold clasp with push button release
• Distance between lugs 20mm

Other Details

• Water Resistance 20 bar
• Magnetic Resistance 4,800 A/m

Features

• Screw-down crown
• See-through & Screw case back