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SPB377J1
SPB377J1
Men's

SPB377

Prospex
Land
USD 1,150.00

Caliber 6R54

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
20

Other Details

Water Resistance
20 bar
Magnetic Resistance
4,800 A/m
Features
  • See-through case back
  • Screw-down crown
  • See-through & Screw case back