Seiko Prospex Marine Green GMT Automatic Watch SPB381 SPB381J SPB381J1
Today, Seiko introduces a new movement in the 6R family with a GMT function and an extended power reserve of 72 hours. The 6R54 calibre is presented in this new Prospex SPB381J1 creation, a modern reinterpretation of the classic 1968 model. The watch is water-resistant to 200 metres, the hands and 12 indexes are equipped with Lumibrite and the unidirectional bezel has a luminous insert. It is presented on a new three-link stainless steel bracelet with a slim profile that provides a solid and comfortable fit on the wrist.
MOVEMENT:
Caliber: 6R54
Jewels: 24
Frequency: 21600
Functions: GMT hand
Power reserve: 72 hours
Movement: Automatique
Precision+25 / -15 sec. / day
Index Specification: LumiBrite
WaterproofingDiver's: 200 meters
CASE / BEZEL / GLASS :
Glass Material: Sapphire
Strap Material: Stainless steel
Bezel Specifications: Rotary
Housing Material: Stainless steel
Bezel Material: Stainless steel, Ceramic
Case back Specificity: Screwed
Glass Specificity: Anti-reflective treatment
Crown Specification: Screwed
Box opening: 42.00 mm
thickness: 12.90 mm
Lug-width: 20 mm