Prospex SPB103J1
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Description
The Seiko Prospex SPB103J1 is a bold diver’s watch built for adventure and everyday confidence.
Powered by the 6R35 automatic movement, it delivers a 70-hour power reserve and reliable precision, while its 45 mm stainless steel case, sapphire crystal, and LumiBrite accents ensure durability and readability in any environment.
With 200 m water resistance, a unidirectional bezel, and a secure clasp, this timepiece combines rugged capability with refined design, making it a dependable companion both underwater and on land.
Movement
Caliber Number: 6R35
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power Reserve: Approx. 70 hours
Jewels: 24
Functions:
- Stop second hand function
- Date display
Case / Band
Case Material: Stainless steel
Thickness: 11 mm
Diameter: 37 mm
Lug-to-lug: 47.6 mm
Crystal: Sapphire crystal
Clasp: Three-fold clasp with secure lock , push button release with extender
Distance Between Lugs: 20mm
Other Details
Weight: 188 g
Features:
- LumiBrite on hands, index(es) and bezel
- Unidirectional rotating bezel
- Screw-down crown
- Screw case back
Any purchase through our SEIKO Online Store has a 3-year guarantee.
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