Prospex SPB377J1
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Description
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
- 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
- Screw-down crown
- See-through & Screw case back
Explore more of the Prospex collection or view more timepieces here. This watch is also included in our Seiko Alpinist and Seiko GMT Collection.
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