Seiko Prospex SPB381 Sea MM200 Automatic GMT Green ball watch Watch body functions • Bluetooth-equipped

Watch body functions • Bluetooth-equipped GPS radio solar • Dual dial world time that can display the time in 2 cities simultaneously (39 cities + UTC 39 time zones) • Magnetic resistant watch (JIS 1 type) • Smart access • Highly smooth surface with "Zaratsu polishing" finishing Double-curved sapphire glass with anti-reflection coating on both sides boasting 99% transparency One-push tri-fold clasp clasp smartphone link function with slide adjustment mechanism that allows band adjustment without the use of tools Automatic time correction four times a day • One-push time adjustment • World time setting (approximately 300 cities) • Automatic reflection of the latest time zone and daylight saving time information *Radio wave reception may not be possible depending on conditions such as season

Crystal: Curved Sapphire Crystal

First introduced in the early 1990s

Buckle: Pin Buckle

In similar homage to tradition

Seiko Prospex SPB381 Sea MM200 Automatic GMT Green ball watch Watch body functions • Bluetooth-equippedCaliber Number: 6R54 Movement Type: Automatic with manual winding Precision: +25 to 15 seconds per day Power Reserve: Approx. 72 hours(3 days) Jewels: 24 Case Band Case Material: Stainless steel (super hard coating) 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