Seiko Prospex 3-Day GMT SPB383J1 . Seiko Prospex challenges every limit, with a collection of timepieces for sports lovers and adventure seekers whether in the water, in the sky or on land.
Movement
- Calibre 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 seconds hand function
Case/Band
- Case Material: Stainless steel (Bezel: Stainless steel with ceramic display)
- Case Size
- Thickness: 12.9mm
Diameter: 42.0mm
Lug-to-lug: 48.6mm - Crystal: Sapphire crystal
- Crystal Coating: Anti-reflective coating on inner surface
- LumiBrite: LumiBrite on hands, index(es) and bezel
- Clasp: Three-fold clasp with secure lock , push button release with extender
- Distance between lugs: 20mm
Other Details
- Water Resistance: 200m / 660ft diver's
- Magnetic Resistance: 4,800 A/m
- Weight: 176.0g
- Features
-
- Unidirectional rotating bezel
- Screw-down crown
- Three-fold clasp with secure lock
- Screw case back