Seiko Selection SBTR Series Drive Type: Quartz 8T63 Precision Average monthly difference ±15 seconds Case Material: Stainless Steel Case Size: 47.0 mm x 39.8 mm x 0.4mm Glass Material Hardlex Lumibright Yes (hands and indices) Waterproof Reinforced water resistance for everyday use (10 ATM) Other Functions and Features Tachymeter bezel, small second hand, stopwatch function (1/5 second measurement 12 hour), calendar (date) function
SBTR013, SBTR015, SBTR017, SBTR021, SBTR027, SBTR029