Seiko Prospex Heritage Diver SPB381J1

Specifications of the Seiko Sea SPB381J1 Prospex 'Marine Green'

The Seiko Sea SPB381J1 features a stainless steel case with a diameter of 42 mm and a thickness of 12.9 mm. The silver-colored case provides a beautiful contrast to the green dial, against which the silver hour, minute and second hands stand out sharply. The ceramic bezel, designed for diving, is unidirectional and adds an extra layer of durability and functionality to the watch. The watch is equipped with sapphire crystal, which is known for its scratch resistance and clarity, ensuring impeccable readability under all conditions.

At the heart of the watch is the Seiko 6R54 caliber, a mechanical automatic movement that is reliable and accurate. This movement offers an impressive power reserve of 72 hours, so you can wear the watch without worry, even if you don't use it for a few days. With a frequency of 21,600 vibrations per hour and 24 jewels, this watch offers smooth and precise timekeeping. The movement is also hackable, which means you can stop the second hand for a more accurate time setting.

The watch strap is made of high-quality stainless steel, with a width of 20 mm at the case and 18 mm at the clasp. The folding clasp with push buttons and safety catch provides additional security and comfort, especially during diving activities. The strap is suitable for a wrist circumference of 160 mm to 210 mm, ensuring a comfortable fit for different wrist sizes.